how scientist know something happened before billion years ago
Answer:
The Big Bang is commonly thought of as the start of it all: About 13.8 billion years ago, the observable universe went boom and expanded into being.
We know that life began at least 3.5 billion years ago, because that is the age of the oldest rocks with fossil evidence of life on earth.
Nonetheless, 3.5 billion year old rocks with fossils can be found in Africa and Australia. They are usually a mix of solidified volcanic lavas and sedimentary cherts.
Explanation:
I hope this helps you !!Answer:
scientist and people have discovered things from a while ago and did research on it, such as dinosaur bones, etc.
Explanation:
Geologists study the density of seismic activity in a region by comparing the number of earthquakes to the area of the region. The seismic activity density of a region is found using the formula: seismic activity density = StartFraction number of earthquakes Over area of land affected EndFraction. The state of California covers approximately 103,718 mi2, and has a seismic activity density of 0. 0964 earthquakes per square mile. The state of Alaska covers approximately 570,641 mi2, and has a seismic activity density of 0. 491. Using this data and rounding to the nearest whole number, Alaska had more earthquakes than California for the year. Why would the seismic activity density of the year for Alaska be smaller than for California if Alaska had more earthquakes?.
The seismic activity density of the year for Alaska will be smaller than that of California if Alaska has more land area than California.
It should be noted that the seismic activity of a region simply means the ratio of the number of earthquakes that occur in the period to the land area.
Based on the information given, the seismic activity density of the year for Alaska will be smaller than for California if Alaska had more land area. From the complete question, the number of earthquakes from the information given will be 18020 earthquakes.
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Answer:
Alaska had 18,020
Alaska has more land area than California
Explanation:
edg
Which of these is not a push factor for migration?
Group of answer choices
lack of health care
environmental degradation
increased employment opportunities
inadequate educational opportunities
how does the elevation of the north china plain compare with that of the plateau of tibet
Answer:
The plateau of Tibet is a very tall plateau in southwestern China.
Explanation:
Describe the world city concept in the context of globalization.
Answer:
Global cities are and always have been both, products and producers of globalization.
Explanation:
They play an important role in shaping a global economy, culture and society, but they are also shaped by it. And they are places where countervailing forces match and local reactions to globalization become especially visible.
Write out how you would describe the difference between rocks and minerals to a 5th grader. PLS HELP I WILL MARK BRAINLIEST!!!!
Answer:
here is your answer..........
HELP ME!
Which of the following has helped to drastically improve the infrastructure of the Russia and Central Asian region?
Question 3 options:
Pyrenees system of canals and bridges
Trans-Siberian Railroad
Transportation subways in its major cities
Urals system of canals and bridges
Answer:
Trans-Siberian Railroad
Explanation:
Trans-Siberian Railroad has helped to drastically improve the infrastructure of the Russian and Central Asian region. Thus, option B is correct.
What is infrastructure?
They underline that critical infrastructure "seem to to be money costs and expensive cost ventures, and are crucial to an economy advancement" and define it as "the broad word for basic fundamental elements of a business sector, or nation."
Witte considered Siberia to be an underdeveloped part of the Russian Empire even though he thought that economic strength led to political power.
He believed that a railway would enable Russia to colonize Siberia, exploit its riches, and increase commerce with East Asia. It draws a lot of international tourists, but it also sees a lot of internal travelers. Therefore, option B is the correct option.
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which continent is touching the eastern border of europe
mount rushmore is located in the black hills of what state?
Answer:
South Dakota
1. An____is a type of rock in which minerals are found in high concentration.
2. Gold and copper ores can be found in___ and____rocks.
3. Kaolinite is a____mineral that can be found in some light bulbs.
4. Salt is a non-metallic mineral that is commonly obtained from the____.
5. ___and___are minerals used in the production of steel.
6. Most of India's mineral wealth lies in the ____ region.
Answer:
1 Igneous rock
2 meterrmorphic and sedimentary rock
3 Quartz
4 sea water
5 carbon and steel
6 western region
If anyone knows ANYTHING about 1-9.Can you please help me?
Answer:
2. Thomos jefferson and martin luther king.
3.Arlington memorial bridge
4. 1300 constitution ave. NW, Washington NC 20560
5. Virginia
6. lincoln and Jefferson memorials.
7. Lincoln Memorial
8. The Ellipse
9. Ulysses S. Grant Memorial.
Explanation:
Although the United States is a developed country, it closely resembles the pattern of a
developing country because"?
A.life expectancy is at 60
B. individuals are required to pay an average of 55% of their health care
C. infrastructure is outdated
What is the age of the continental crust compared to the ocean crust?
Answer:
The oldest oceanic crust is about 260 million years old. This sounds old, but is actually very young compared to the oldest continental rocks, which are 4 billion years old.
Explanation:
1
2
3
3
5
6
7
8
9
10
industry.
The Great Lakes region of Canada is dominated by the
A. farming
B. fishing
C. manufacturing
D. mining
Please select the best answer from the choices provided
A
Answer:
Great lakes region of Canada is dominated by the manufacturing so C
which type of event often occurs along transform fault boundaries?
The third type of plate boundary occurs where tectonic plates slide horizontally past each other. This is known as a transform plate boundary. As the plates rub against each other, huge stresses can cause portions of the rock to break, resulting in earthquakes. Places where these breaks occur are called faults.
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Que es la aceleración dela luz
Answer:
Explica que la luz no acelera cuando se mueve a la velocidad de la luz. Pero cuando se emite luz, como fotón, tiene que acelerar desde una velocidad de 0 m / sa 3,0 * 10 ^ 8 m / s.
Explanation:
Alfred Wegner proposed the theory of plate tectonics. Explain the theory and what evidence has been found to support his theory.
Answer:
Wegener supported his theory by demonstrating the biological and geological similarities between continents. South America and Africa contain fossils of animals found only on those two continents, with corresponding geographic ranges.
Explanation:
A triangle has the side lengths 5, 7, and X. What is X?
Answer:
13
Explanation:
The best known solution is the one where the hypothenuse is 13. That's the famous 5–12–13 triangle.
PLEASE HELPPP I'LL GIVE 20 POINTS
Answer:
a,c, and d.
Explanation:
A typical source rock of oil, which started out as mud in which dead organic matter settled, is:
Answer:
Shale.
Explanation:
The radius of the circle is 5.5mm. What is the diameter?
Answer:
The diameter would be 11.
how much water is in the ocean in cubic kilometers in scientific notation
Answer:
1.37 billion cubic kilometers
On 14th March people were able to visit Murud Janjira only by boat for the whole day. Why would this have happened? What date would it happen again? Approximately what date next would it be possible for people to walk across to the fort?
Tourists visit Murud Janjira due to its historical importance.
Famous Janjira Fort which is located in Maharashtra has been reopened after almost six months when the pandemic situation in the state is improving. This tourist destination was closed due to the pandemic situation across the country.
Murud Janjira fort is one of the famous tourist destinations in Raigad District due to historic importance. The tourist visits to this place in the boat due to presence of river surround it so we can conclude that people visits Murud Janjira due to its historical importance.
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how long do we have until climate change is irreversible
Answer:
fist of all prevention is better than cure
Explanation:
until next messi borns which is immppssible
moving pieces under the earths surface that forms the earths crust are called...???
Answer:
Earth's crust, called the lithosphere, consists of 15 to 20 moving tectonic plates.
Explanation:
how are continental climates different from temperate climates
Answer:
The regions have fresh summers and wet winters with mild weather. A continental moderate climate is another sub-type of temperate climates. These regions have hot, rainy summers and cold, dry winters.
Suffrage is the right to __________.
Answer:
Suffrage is the right to political franchise.
what is the most likely cause of the geological features in the mid-ocean ridge
Answer:
Mid-ocean ridges occur along divergent plate boundaries, where new ocean floor is created as the Earth's tectonic plates spread apart. As the plates separate, molten rock rises to the seafloor, producing enormous volcanic eruptions of basalt.
Explanation:
its copied put it in ur own words but hope it helps
Governments typically establish population policies for all of the following reasons except __________. A. to limit population growth B. to encourage the growth of an ethnic group C. to lower the standard of living for all citizens D. to encourage population growth Please select the best answer from the choices provided. A B C D
Answer:C
Explanation: Edge 2022
what geographic and natural resources allowed ancient egypt to be so successful?