Answer:
different, beneficial or negative weather
Explanation:
el nino years are when the prevailing winds shift the ocean currents, either more or less rain, if it shifts a war current to a certain place, there would be more evaporation because of the hot water, because if water reaches a certain temperature, some of the water will evaporate and then condense into a cloud, when the prevailing wind shift a cold current to location, less evaporation will occur, making dry weather
In an El Niño year, you can expect the following set of conditions:
1. Warmer than average sea surface temperatures in the central and eastern tropical Pacific Ocean.
2. Weaker trade winds in the tropical Pacific, allowing for the warm water to spread towards the east.
3. Changes in precipitation patterns, often leading to increased rainfall in the eastern Pacific and drier conditions in the western Pacific.
4. A shift in atmospheric pressure, known as the Southern Oscillation, which is typically characterized by lower pressure over the eastern Pacific and higher pressure over the western Pacific.
These conditions can have significant effects on weather patterns and climate around the world, often causing extreme weather events and impacting ecosystems.
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Do all parallels and meridians cross each other at right angles on both the globe and the Mercator?
Answer:
1. All parallels and meridians are straight lines and they intersect each other at right angles.
2. All parallels have the same length which is equal to the length of equator.
Hope this helps :)
Pls brainliest...
No, not all parallels and meridians cross each other at right angles on both the globe and the Mercator projection. While the concept of parallels and meridians is the same on both, the Mercator projection distorts the angles and shapes of land masses as you move further away from the equator.
This means that while some parallels and meridians may cross each other at right angles on the Mercator projection, others may not due to the distortion of the map. On a globe, however, all parallels and meridians do intersect at right angles.Parallels, also known as lines of latitude, run horizontally on a map and are parallel to the equator. Meridians, also known as lines of longitude, run vertically on a map and converge at the poles. On a globe, parallels and meridians cross each other at right angles, forming a grid-like pattern.
On a Mercator projection, a type of map projection that represents the Earth on a flat surface, the parallels and meridians also appear to cross each other at right angles. However, it is important to note that the Mercator projection introduces some distortions in the representation of the Earth's surface, such as the distortion of size and shape near the poles. Despite these distortions, the crossing of parallels and meridians at right angles on the Mercator projection remains true for practical purposes.In summary, both on a globe and a Mercator projection, parallels and meridians cross each other at right angles.
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What happens to the shape of Greenland on an Eckert projection?
Answer:
Greenland does not change size! Different map projections make Greenland appear to be a different size. The Mercator projection makes everything that is near the polar areas appear too large. The Mollweide projection distorts the size of the polar regions much less.
Hope this helps :)
Pls brainliest...
On an Eckert projection, the shape of Greenland becomes distorted and appears elongated horizontally. This is because the Eckert projection is a compromise projection, meaning it tries to balance both the size and shape of landmasses.
However, due to the unique shape of Greenland, it is impossible to accurately represent its true shape on this type of projection.On an Eckert projection, the shape of Greenland is distorted due to the way the map projection represents the Earth's surface. In an Eckert projection, the meridians are equally spaced, and the parallels are stretched out as you move away from the equator. As a result, the shape of Greenland, which is located at a high latitude, appears larger and more elongated than it actually is in reality. This distortion is a common characteristic of map projections, as they attempt to represent the Earth's curved surface on a flat plane.
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the peninsular terrane is now part of the crust of north america in southern alaska. the dominant rock type in this terrane is intrusive igneous rock that ranges in composition from gabbro to granite and volcanic rock with a similar compositional range. geologic evidence indicates the peninsular terrane collided with north america during late mesozoic time. What would be the most reasonable interpretation for the origins of the peninsular terrane?
The most reasonable interpretation for the origins of the peninsular terrane is that it was once a separate tectonic plate that collided with North America during the late Mesozoic era.
This collision caused the peninsular terrane to become part of the crust of North America in southern Alaska. The dominant rock type in this terrane, which ranges from gabbro to granite and volcanic rock, suggests that it was formed through volcanic activity and subsequent intrusion of magma into the Earth's crust.
Overall, the geological evidence points to the peninsular terrane as a distinct and separate geological entity that has been amalgamated with North America through tectonic processes.
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which of the following make up the suspended loads of most rivers and streams? dissolved salts sand and gravel that move during floods silt and clay-sized, detrital grains dissolved ions and sand
Silt and clay-sized, detrital grains make up the suspended loads of most rivers and streams.
Suspended load refers to the portion of a river's sedimentary load that is carried in suspension in the water column. It consists of fine-grained particles such as silt and clay, as well as small particles of sand and other detritus that are small enough to remain suspended in the water. Suspended load is typically the most visible and most active component of a river's sedimentary transport, and it is responsible for a significant amount of erosion and deposition along a river's course. The amount and composition of suspended load can vary widely depending on factors such as the river's flow rate, channel morphology, and the types of rocks and soils present in the river basin.
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PLEASE HELP
This image shows Earth’s position when it is summer in the Northern Hemisphere. The Sun’s light doesn’t strike all parts of Earth at the same angle because Earth is spherical. Based on your conclusions from part A, which areas of Earth receive the greatest and the least solar irradiance?
The Earth is tilted towards the Sun in the Northern Hemisphere during the summer. This makes for longer days and more direct sunshine in the Northern Hemisphere, which raises the temperature there.
The Earth is tilted towards the Sun during the Northern Hemisphere summer. The tilt of the Earth's axis is what causes the seasons. Different parts of the Earth experience the strongest solar radiation at different times of the year.
Thus, summer in the Northern Hemisphere begins when the North Pole tilts towards the Sun. Additionally, the Northern Hemisphere experiences winter when the South Pole tilts towards the Sun.
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Answer:
The regions closest to the equator receive the most direct sunlight because the light is arriving at an angle close to 0°. As a result, a lesser area is illuminated and so there is greater solar irradiance. The regions nearest to the poles receive sunlight at more of an angle, resulting in a larger area of illumination and therefore less solar irradiance.
Explanation:
sample answer
Sketch or describe the various textures displayed by igneous rocks.
the texture of an igneous rock can provide clues about its origin and the conditions under which it was formed.Igneous rocks can display a wide range of textures, depending on how they were formed.
Some common textures include:
1. Glassy: This texture is formed when magma cools so quickly that no crystals have time to form. The resulting rock is smooth and shiny, like glass.
2. Porphyritic: This texture is characterized by large, visible crystals (called phenocrysts) embedded in a finer-grained matrix. This texture is often seen in volcanic rocks.
3. Vesicular: This texture is formed when gas bubbles get trapped in the magma as it cools, leaving behind small cavities in the rock. The resulting rock is porous and lightweight.
4. Fine-grained: This texture is formed when magma cools quickly, but not so quickly that glass is formed. The resulting rock has a smooth texture with small, tightly packed crystals.
5. Coarse-grained: This texture is formed when magma cools slowly, allowing large crystals to form. The resulting rock has a rough texture with visible crystals.
Overall, the texture of an igneous rock can provide clues about its origin and the conditions under which it was formed.
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When two objects in orbit have periods of revolution that are simple ratios of each other (such as 1 to 2 or 1 to 3) we say that we have ____
When two objects in orbit have periods of revolution that are simple ratios of each other (such as 1 to 2 or 1 to 3) we say that we have a resonance.
Hi! When two objects in orbit have periods of revolution that are simple ratios of each other (such as 1 to 2 or 1 to 3), we say that we have a "resonance" or "orbital resonance." This phenomenon occurs when the gravitational interaction between the objects causes their orbits to synchronize in a stable pattern, leading to the observed ratios in their periods of revolution.
you observe two yellow g-type stars in a nearby star cluster at a known distance. one is 64 times brighter than the other. from this information, you can conclude that the brighter star has a radius
Based on the information provided, you can determine the radius of the brighter G-type star in comparison to the other star using the following steps:
1. Recall that the luminosity (brightness) of a star is proportional to its radius squared and its temperature to the fourth power (L ∝ R^2 * T^4, where L is luminosity, R is radius, and T is temperature).
2. Given that both stars are G-type, they have approximately the same temperature. Thus, the temperature factor can be ignored in this case.
3. The given information states that the brighter star is 64 times brighter than the other star. So, L1 = 64 * L2, where L1 is the luminosity of the brighter star and L2 is the luminosity of the other star.
4. With the temperature factor removed, we can now relate the radii of the two stars to their luminosities: R1^2 = 64 * R2^2, where R1 is the radius of the brighter star and R2 is the radius of the other star.
5. To find the relationship between the radii, take the square root of both sides: R1 = 8 * R2.
From this calculation, you can conclude that the brighter G-type star has a radius 8 times larger than the other star in the nearby star cluster.
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Q: How would you distinguish a planet from a star in the night sky?
To distinguish a planet from a star in the night sky, you can observe their characteristics. Planets are typically brighter than stars and don't twinkle as much.
They also tend to move across the sky over time, whereas stars remain relatively stationary. Additionally, planets have a visible disc shape, while stars appear as small points of light.
By considering these factors, you can differentiate between planets and stars in the night sky.To distinguish a planet from a star in the night sky, follow these steps:
1. Observe the brightness: Stars often twinkle, while planets generally shine steadily. Planets usually appear brighter than most stars because they are closer to Earth.
2. Check for color: Stars often display colors, such as red, blue, or yellow, while planets typically appear white or slightly tinted. For example, Mars has a reddish hue.
3. Analyze the movement: Over several nights, planets will change their position relative to the stars, as they orbit the Sun. Stars, on the other hand, remain relatively fixed in the sky.
By considering these factors, you can distinguish a planet from a star in the night sky.
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Latitude is the effect of climate example
As a general rule, the further away from the equator a location is, the colder its climate tends to be. This is because the sun's rays are spread out over a larger area at higher latitudes, reducing the amount of heat and light that reaches the surface.
For example, areas near the equator, such as the Amazon rainforest, experience warm, humid climates with high levels of precipitation year-round. In contrast, regions near the poles, such as Alaska or northern Canada, experience extremely cold and dry climates due to the low angle of the sun's rays and the tilt of the earth's axis.
Latitude also plays a role in the length of daylight hours, with higher latitudes experiencing longer summer days and shorter winter days. This can impact plant growth and migration patterns of animals.
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How Does Latitude Affect Climate?
Lava with a higher content of _________________ has higher viscosity. if a large explosion causes the magma chamber below a volcano to empty, the volcano can collapse and form a/an ______________ shield volcanoes can form when less ____________ lava flows quickly away from a vent.
Lava with a higher content of silica has higher viscosity, meaning it is thicker and flows more slowly. This is because silica forms chains that trap gas bubbles, making it harder for the lava to flow.
If a large explosion causes the magma chamber below a volcano to empty, it can create a void that the overlying rock cannot support, causing the volcano to collapse and form a caldera. Shield volcanoes, on the other hand, can form when less viscous lava flows quickly away from a vent.
This type of volcano has a wide, gently sloping shape and is built up by repeated eruptions of lava flows. The type of lava that forms a shield volcano is low in silica content, allowing it to flow more easily and create broad, shallow slopes. Overall, the viscosity of lava plays a significant role in determining the shape and behavior of volcanoes.
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which one of the following demographic factors characterizes stages 4 and 5 in the demographic transition model? A. Zero population growthB. High mortality ratesC. High birth ratesD. High sex ratiosE. Overpopulationwww.crackap.com
Stages 4 and 5 of the model are characterized by a low birth rate and a low death rate, resulting in a stable or declining population. Therefore, option A, zero population growth, is the demographic factor that characterizes stages 4 and 5 of the demographic transition model.
The demographic transition model is a theoretical model used to explain the changes in population growth rates over time. It is divided into five stages, each characterized by different demographic factors. Zero population growth refers to a state where the birth rate equals the death rate, resulting in no net increase in population size. This can be achieved through various means, including family planning programs, education, and economic development. In developed countries, zero population growth is often accompanied by an aging population and a decline in the workforce, which can pose economic challenges.
Overall, understanding the demographic factors that characterize each stage of the demographic transition model can provide valuable insights into population dynamics and inform policies aimed at promoting sustainable development.
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Why is drought or desertification more frequent in south africa
Drought and desertification are more frequent in South Africa due to their location, climate, human activities, and climate change.
Drought and desertification are more frequent in South Africa because of a combination of things, along with its area, climate, and human activities. South Africa is situated in a subtropical region that is vulnerable to hot and dry situations, in particular within the interior regions of the US. T
his makes the region prone to drought, which could result in desertification if no longer controlled properly. Additionally, human sports including overgrazing, deforestation, and negative land management practices have contributed to the hassle of desertification in South Africa.
Those activities can cause soil erosion, which in turn can motivate the loss of vegetation and exacerbate the outcomes of drought. Climate change is likewise exacerbating the hassle of drought and desertification in South Africa.
Rising temperatures and changing rainfall patterns are making it more difficult to preserve agricultural practices and hold healthful ecosystems. To combat the trouble of drought and desertification, south africa has applied diverse techniques which include water conservation, reforestation, and sustainable land management practices.
However, these efforts face considerable demanding situations because of the usa's socio-monetary inequalities, political instability, and constrained assets.
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which practice fills the definition of conservation
A. recycling cans that contain a material like aluminum
B. not using a necessary mineral resource at all
C. using more of a mineral resource than needed
D. strip mining a mineral without regard to the surface soil and vegetation above it
The practice fills the definition of conservation is A. recycling cans that contain a material like aluminum
What is the recycling?Conservation refers to the careful use and management of natural resources to prevent waste and protect the environment. By recycling cans that contain materials like aluminum, we can conserve natural resources and reduce the amount of waste that ends up in landfills.
Therefore, Option B, not using a necessary mineral resource at all, may not be a practical or sustainable solution in many cases, as certain mineral resources may be essential for certain industries or products.
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the growth of kiev (or kyiv) as the core of the first russian state was linked to trade:
The growth of Kiev as the core of the first Russian state was closely linked to trade.
Kiev was located on the Dnieper River, which provided a convenient waterway for the transportation of goods. This made Kiev a natural hub for trade between the Baltic Sea and the Black Sea, and between Europe and Asia. The city grew prosperous as a result, and this wealth attracted settlers from other parts of the region.
Kiev's position also made it an important center for the exchange of ideas and culture, as traders and travelers from different parts of the world passed through the city. Over time, Kiev became the center of a powerful state known as Kievan Rus, which included parts of what is now Ukraine, Russia, and Belarus. The legacy of Kiev's trade and cultural connections can still be seen in the city today.
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Gravity is inversely proportional to the______between the two objects and directly proportional to the______of the two objects.
O orbit, mass
O distance, weight
O distance squared, masses
O weight, mass
Answer:
weight, mass
Explanation:
gravity draws things that are heavier down quicker, therefore it should be the bottom answer
explain why the following telescope might not be very effective for research: a 10-m x-ray telescope located on mauna kea (where many big telescopes are) in hawaii
There are a few reasons why a 10-m X-ray telescope located on Mauna Kea may not be very effective for research: X-ray Observations, High Altitude, Weather Conditions and Other Factors.
There are several reasons why a 10-m X-ray telescope atop Mauna Kea could not be very useful for research:
X-rays are a form of electromagnetic radiation that is absorbed by the Earth's atmosphere. This means that in order to observe X-rays from space, X-ray telescopes must be situated outside of the Earth's atmosphere. High Altitude: Mauna Kea is a high-altitude position that can benefit some types of telescopes by reducing air interference and providing a sharper view of the sky. Weather Conditions: Mauna Kea is located in a tropical zone known for its humid and overcast weather.For such more question on telescope:
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Direction Does It Tend To Deflect If Its Velocity Is Directed In Each Of The Following Directions?
Consider an electron near the Earth's equator. In which direction does it tend to deflect if its velocity is directed in each of the following directions?
(a) downward Direction
(b) northward Direction
(c) westward Direction
(d) southeastward
For each direction:
(a) Downward: Deflects westward (leftward)
(b) Northward: Deflects downward and westward (leftward)
(c) Westward: Deflects upward
(d) Southeastward: Deflects downward and westward (leftward).
If it tend to deflect its velocity is directed in following directions?
We will consider an electron near the Earth's equator and determine the direction it tends to deflect if its velocity is directed in each of the following directions:
(a) Downward Direction: Since the electron is negatively charged, it will experience a force opposite to the direction of the Earth's magnetic field. At the equator, the Earth's magnetic field points northward and downward. When the electron moves downward, it experiences a force due to the Earth's magnetic field that will deflect it to the westward (leftward) direction.
(b) Northward Direction: When the electron moves in the northward direction, it will be affected by the Earth's magnetic field, which will deflect it downward and westward (leftward).
(c) Westward Direction: As the electron moves in the westward direction, the Earth's magnetic field will deflect it in an upward direction.
(d) Southeastward Direction: When the electron moves in the southeastward direction, it will experience a combination of the deflections mentioned in parts (a) and (b). Thus, the electron will deflect downward and westward (leftward).
In summary, for each direction:
(a) Downward: Deflects westward (leftward)
(b) Northward: Deflects downward and westward (leftward)
(c) Westward: Deflects upward
(d) Southeastward: Deflects downward and westward (leftward).
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what does not explain why indoor air pollution may pose a bigger threat than outdoor air pollution in some locations?
Indoor air pollution may pose a bigger threat than outdoor air pollution in some locations due to various factors such as inadequate ventilation, the presence of harmful substances, and higher concentrations of pollutants. However, one aspect that does not explain this difference is the assumption that outdoor air pollution automatically poses a lesser risk.
In reality, outdoor air pollution can be quite harmful, with factors such as vehicle emissions, industrial processes, and natural sources contributing to poor air quality. While it is true that indoor air pollution may be more dangerous in certain situations due to the reasons mentioned earlier, it is not accurate to assume that outdoor air pollution is always less of a concern.
Both indoor and outdoor air pollution can negatively impact human health, leading to respiratory illnesses, heart disease, and other health issues. Therefore, it is important to address both types of pollution and take steps to improve air quality in all environments, rather than focusing solely on indoor air pollution as the bigger threat in some locations.
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All streams regardless of size, transport some weathered rock material. streams also sort the solid sediment they transport because finer, lighter material is carried more readily than larger, heavier particles. streams transport their load of sediment in three ways. What is one the three ways identified by your text?
One of the three ways that streams transport their load of sediment is through suspension.
Suspended sediment consists of small, light particles that are carried within the water column without settling to the streambed. These particles can include fine sand, silt, and clay. The amount of sediment that a stream can suspend is largely determined by the velocity of the water flow.
Faster-moving water can carry larger and heavier particles than slower-moving water. Suspended sediment can have a significant impact on water quality and ecosystem health. High levels of sediment can reduce water clarity, block sunlight from reaching aquatic plants, and damage fish and other aquatic organisms.
It is therefore important to monitor and manage sediment levels in streams to maintain healthy aquatic ecosystems.
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what are index minerals and how are they used? name a few. explain their relationship to metamorphic grade
Index minerals are minerals that are used to determine the degree or intensity of metamorphism a rock has undergone.
These minerals are good indicators of the temperature and pressure conditions during metamorphism. They form under specific temperature and pressure conditions and their presence and abundance can be used to infer the degree of metamorphism that has occurred.
Some examples of index minerals include:
Chlorite: forms under low-grade metamorphic conditions and is an indicator of greenschist facies
Biotite: forms under low to medium-grade metamorphic conditions and is an indicator of greenschist to amphibolite facies
Garnet: forms under medium to high-grade metamorphic conditions and is an indicator of amphibolite to granulite facies
Staurolite: forms under medium to high-grade metamorphic conditions and is an indicator of schist and gneiss facies
Kyanite: forms under high-grade metamorphic conditions and is an indicator of eclogite faciesThe presence of these minerals, as well as their abundance and size, can be used to determine the metamorphic grade of a rock. The higher the metamorphic grade, the greater the amount of deformation and recrystallization that has occurred, leading to the formation of different index minerals. Therefore, the presence and abundance of index minerals can provide important information about the history and evolution of a rock.
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earthquake prediction has become very reliable in the last 20 years.question 2 options:a) trueb) false
Answer:
True
Explanation:
in the northern hemisphere when the cold front overtakes warm fronts around the low pressure system an front is created and ow altitute air starts forming the midlatitute cyclone
In the northern hemisphere, when a cold front overtakes a warm front around a low-pressure system, it creates a front known as an occluded front. This front marks the end of the midlatitude cyclone's life cycle, as it represents the point where the cold front has caught up and overtaken the warm front.
As the cold front approaches the warm front, it forces the warm air to rise rapidly, creating a narrow band of intense precipitation. This precipitation band moves along the warm front until it is completely overtaken by the cold front, forming an occluded front. At this point, the midlatitude cyclone's energy source, the temperature difference between the warm and cold air masses, is no longer present. Without this source of energy, the cyclone begins to weaken and eventually dissipate.
As the cyclone weakens, the low altitude air around the system begins to form into a new high-pressure system, marking the end of the cyclone's life cycle. This process is known as the occlusion process and is an important part of understanding midlatitude cyclones in the northern hemisphere.
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what is Dubai like today?
Answer:
fine, white sandy deserts and a flat coastline, and in the middle of a peninsula
Explanation:
by looking at a map, you can see that it is in the middle of a peninsula with the Persian gulf and the gulf of Oman around the peninsula.
In a paragraph of approximately EIGHT lines describe the influence
inclined strata has on settlement, transport routes, mining, and
agriculture.
Inclined strata can affect settlement , transport routes, mining, and agriculture by determining how these are built around it.
How can strata affect these ?The occurrence of inclined strata can have an effect on settlement patterns, potentially proving challenging to build structures upon or develop due to the steepness of the gradient.
Furthermore, roadways and railway networks may need to be carefully charted around or through such terrain to ensure safe, efficient navigation. Ordinarily, mining operations are also affected by these rock forms as ore deposits tend to congregate where strata has been slanted, bent, or folded.
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quiz 19: unit 10. part 1. question 1. watch the unit 10 part 1 lecture video and answer the following question: what happens atmospheric pressure and temperature with increasing altitude?
As altitude increases, atmospheric pressure and temperature decrease. This is due to the decreasing density of air molecules at higher altitudes.
The weight of the atmosphere above a given point, which creates atmospheric pressure, decreases with increasing altitude. This leads to a decrease in air pressure as altitude increases. Similarly, the temperature of the atmosphere decreases with increasing altitude due to the decrease in atmospheric pressure. This occurs because the decrease in air pressure causes the air molecules to spread out and cool, leading to a decrease in temperature. The rate at which temperature decreases with altitude is known as the lapse rate and varies depending on atmospheric conditions.
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what is the ratio of ocean evaporation that falls as precipitation on land compared to runoff from land to the oceans? what is the ratio of ocean evaporation that falls as precipitation on land compared to runoff from land to the oceans? 0.09 0.36 0.57 1
The ratio of ocean evaporation that falls as precipitation on land compared to runoff from land to the oceans is approximately 0.36.
This means that about 36% of the water that evaporates from the oceans falls as precipitation on land, while the remaining 64% runs off back into the oceans.The ratio of ocean evaporation that falls as precipitation on land compared to runoff from land to the oceans can vary depending on a variety of factors such as climate, topography, vegetation, and land use. In general, the ratio is estimated to be around 0.36, meaning that about 36% of the water that evaporates from the oceans falls as precipitation on land, while the remaining 64% returns to the oceans as runoff from the land. However, this ratio can be much lower in arid regions with high evaporation rates and low precipitation, or much higher in areas with high rainfall and steep topography that results in more runoff. It's important to note that these ratios are only estimates and can vary significantly depending on the specific conditions of each region.
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correlation between two regions can sometimes be made by assuming that similar rock types in the regions formed at the same time.
true or false
Answer:
True
Explanation:
True, correlation between two regions can sometimes be made by assuming that similar rock types in the regions formed at the same time.
When scientists study the rocks in different regions, they can sometimes make a correlation between the two regions by assuming that similar rock types in both regions formed at the same time.
For example, if two regions have similar rock layers with the same fossils, scientists can assume that those rocks were formed at the same time in the past when those fossils existed. This helps scientists understand how the Earth's surface has changed over time and how different regions are related to each other.
In summary, by comparing the rocks in different regions and looking for similarities, scientists can make assumptions about when and how those rocks were formed.
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Summarize the main minerals that are present in felsic, intermediate, mafic, and ultramafic rocks
Felsic rocks are composed mainly of feldspar and quartz, with smaller amounts of mica and other minerals. Intermediate rocks contain minerals such as plagioclase feldspar, hornblende, and pyroxene.
Mafic rocks consist mainly of pyroxene, olivine, and calcium-rich plagioclase feldspar. Ultramafic rocks contain even more olivine and pyroxene, with lesser amounts of calcium-rich plagioclase feldspar.Felsic rocks are high in silica and aluminum, and typically contain minerals such as quartz, feldspar (orthoclase and plagioclase), and muscovite. Intermediate rocks are intermediate in silica content and often contain minerals such as amphibole and biotite. Mafic rocks are low in silica and high in iron and magnesium, and commonly contain minerals such as pyroxene and olivine. Ultramafic rocks are even lower in silica and higher in iron and magnesium than mafic rocks, and often contain minerals such as pyroxene and olivine as well as chromite and garnet.
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Identify the TRUE statement.
Oa. The tide-generating force is a combination of only two forces, the gravitational attractions of the Sun and Moon.
Ob. Since the Sun is much larger than the Moon, its gravity is the biggest contributing factor to the tide-generating force.
Oc. A flood tide that arrives as a visible wall of water is called a tidal bore.
Od. Tidal reach means the farthest inland the water goes at high tide.
The TRUE statement is option Od. Tidal reach means the farthest inland the water goes at high tide.
The tide-generating force is a combination of only two forces, the gravitational attractions of the Sun and Moon. This is known as the gravitational pull of the Moon and the Sun, which causes a bulge in the ocean's water levels, leading to high tides. Although the Sun's gravity is stronger than the Moon's, it is the Moon that has a greater effect on tides because it is closer to the Earth. Option B is incorrect since the size of the celestial bodies does not determine their effect on tides. Option C is also incorrect since a tidal bore is a type of tidal phenomenon where a wave of water moves upstream against the current of a river or narrow bay.
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