Which is a major drawback to the use of hydrogen power?
O
A. The use of fossil fuels is required to create pure hydrogen.
B. Hydrogen power creates toxic waste that must be stored forever
C. Hydrogen may run out in the next 100 years.
O D. Burning hydrogen releases greenhouse gases.

Answers

Answer 1

Answer:

1. The expenses 2. It's also really flammable 3. It also emits a greenhouse gas.

Answer 2

Answer:

the answer is A

Explanation:


Related Questions

(100 points) Describe the stages of economic development described in Rostow's theory of modernization and growth. Then, give an example of at least two ways countries may face challenges when following this model.


Note: This has to be a unique writing. If you copy and paste from a website, uhhh- YOu suck :V

Answers

Answer:

1.Traditional society: Is an agricultural economy of mainly subsistence farming little to which is traded.

2.Pre-conditions for take off: Agriculture become more mechanized and more output is traded.

3. Take-off: manufacturing industry assumes greater importance.

4.Drive to maturity: The growth of the industry spread to different parts of the country.

5.Age of mass consumption: Output levels grow enabling increased consumer expenditure.

Hope this helps!

If you wanted to travel from guangzhou to shanghai, in which direction would you head?

Answers

guangzhou 113°E 23°N
shanghai 121°E 31°N
so the direction is northeast

Copper concentration mill tends to locate near a copper mine because

Answers

Answer:

it is a bulk reducing industry and low transportation costs

whats the definition of a Tornado

Answers

a mobile, destructive vortex of violently rotating winds having the appearance of a funnel-shaped cloud and advancing beneath a large storm system.

Answer:

Tornados are rotating or circling columns of air that are very violent, they are know to be natures most dangerous type of storm and they are said to be attached to the base of a thunderstorm. They are extremely dangerous and can damage so many things.

Explanation:

I hope it helps! Have a great day!

Muffin ^^

Which african country is losing its rainforest the fastest.

Answers

Answer:

Ghana

Explanation:

Urbanization of a watershed is most likely to result in __________.Group of answer choices increased infiltration of rainwater an increase in the volume of water entering streams after rainfalla decrease in the likelihood of flash floodinga longer lag time between storms and the onset of flooding

Answers

Answer:

an increase in the volume of water entering streams after rainfall

Explanation:

The watershed rises the water in streams and other places full of water.

Which of the following are needed to form a salt lake

Answers

Answer:

when freshwater flows into the lake, but cannot exit due to a lack of outflow. When water evaporates, the salty minerals are left behind to mix with new rainwater.

Explanation:

Answer:Essentially, salt lakes form when freshwater flows into the lake, but cannot exit due to a lack of outflow. When water evaporates, the salty minerals are left behind to mix with new rainwater. In short, if a lake has no outflow, it eventually becomes a salt lake.

Explanation:

Deserts can be found near oceans on the coast of continents?.

Answers

Answer:

Yes.

Explanation:

Coastal deserts, as the name indicates, are deserts that stretch along the shore. They're one of the four primary desert varieties. Their proximity to the sea endows them with distinct characteristics not present in other deserts. Deserts like this are common on the western margins of continents, when cold ocean currents flow parallel to the shore. The air above is unable to contain moisture due to the cold currents, and the majority of it falls as rain on the sea before reaching land. As a result of the cold ocean currents, the area around the shore receives little or no precipitation and becomes a desert. Winters in coastal deserts are generally brief, with temperatures of 5°C and lower, with the lowest temperature recorded being -4°C. Summer temperatures in the coastal deserts range from 13°C to 24°C, with 35°C being the maximum ever recorded. Every year, an average of 13cm of rain is recorded. Despite their proximity to water sources, these deserts remain noticeably dry because the majority of precipitation falls in the ocean, with just a little portion reaching land. The soils in these deserts are more permeable, with a moderate texture and salt concentration. The production of strong fogs in the winter is another distinctive feature of coastal deserts. Upwelling cold currents cause such fogs to develop, which coat the desert and prevent sun rays from reaching the sands.

What unexplained oddities have been found in the fossil record?

Answers

A typical unexplained oddities which been found in the fossil record is the evolution of species e.g. crocodile & bird, ape & human which are from same family.

What is a fossil record?

This refers to the history of life which was documented by fossils.

The fossil record entails observation from fossils which are remains organisms from earlier geological periods that was preserved in sedimentary rock.

Read more about fossil record

brainly.com/question/1496858

#SPJ1

O is the center of the regular pentagon below. Find its area. Round to the nearest tenth if necessary

Answers

This exercise is related to the Mathematics of Shapes and Geometry. The area of a Pentagon is arrived at by using the following formula:

A = 1/4([tex]\sqrt{5(5+2\sqrt{5} } )[/tex] a².

What is a Pentagon?

A pentagon is a shape with five sides that are straight that also has five angles.

Note that the information provided in the question is incomplete hence the general answer.

Learn more about Pentagons at:
https://brainly.com/question/21475963

Which route best connects iron ore to the large bituminous and anthracite coal mines located west of pittsburgh?.

Answers

The route that best connects iron ore to the large bituminous and anthracite coal mines is the Great lakes to Cleveland .

What is iron ore?

Iron ore ssrves as one of the mineral resources which can be heated in the presence of a reductant to produce a metallic iron.

It is usually inform of iron oxides and primary forms of which are magnetite , which can be found at Great lakes of Cleveland .

Learn more about Iron ore at;

https://brainly.com/question/4693242

Describe how lunar phases result from different portions of the moons a illuminated half being visible as the moon orbits earth

Answers

Just like the Earth, half of the Moon is lit by the Sun while the other half is in darkness. The phases we see result from the angle the Moon makes with the Sun as viewed from Earth.


Hope this helps ^v^

What large body of water borders the african continent to the north?

Answers

The continent is bounded on the west by the Atlantic Ocean, on the north by the Mediterranean Sea, on the east by the Red Sea and the Indian Ocean, and on the south by the mingling waters of the Atlantic and Indian oceans.

The Mediterranean Sea is the large body of water borders the African continent to the north. The Atlantic Ocean borders the continent on the west, the Mediterranean Sea on the north, the Red Sea.

How are water borders determined?

The boundary between nations was calculated by Marine Regions and designated as the Median Line – or the line linking places that are located at equal distance from both coastal states.

Unless borders at sea were specified by a treaty or agreement between coastal areas. Maritime borders, or national borders formed by the sea, are found in many countries.

Thus, Mediterranean Sea is the water border body in African continent.

For further details about the water border, click here:

https://brainly.com/question/332397

#SPJ4

what are land use model?​

Answers

Land use models deal with describing activities of land consuming actors and their competition for land in an urban setting.

ℎ ℎ! <3

What are the most populated countries in the world

Answers

Answer: I will give you the top five countries in population.

People's republic of china- 1.42 billion

Republic of india- 1.40 billion

United states of America- 332.4 million

Republic of indonesia- 273 million

Islamic republic of pakistan- 228 million

The most populated countries in the world are China with 18.47%, India with 17.70 %, United States with 4.25 % and Indonesia with 3.51 %.

How the population of countries is calculated?

The population of a certain place is defined as the number of people who normally live there on January 1st of each year. The most recent population census can be used as a source.

Thus, China, India, U.S and Indonesia are the most populated countries.

For further information about the population of countries, click here:

https://brainly.com/question/3481400

#SPJ4

How long does it take to recover from an appendectomy.

Answers

Answer:

2-4 weeks or 1-3 weeks

Explanation:

Your recovery time depends on the type of surgery you had. If you had laparoscopic surgery, you will probably be able to return to work or a normal routine 1 to 3 weeks after surgery. If you had an open surgery, it may take 2 to 4 weeks. If your appendix ruptured, you may have a drain in your incision.

Look at the map. Which of the following conclusions is best supported by the
map?
• one dot = 7500 people
Alaska
Hawaii
2000 Population Distribution
in the United States
A. Diversity only exists in urbanized areas.
O B. Crops can generally be grown only west of the Mississippi.
O C. The coastlines generally have a greater concentration of
population
O D. There are no urbanized areas in the Midwest.

Answers

The answer is d because I think so

Geography and History of the World. How does the climate affect life in East Africa?

NOT CLIMATE CHANGE, JUST CLIMATE!

Answers

There are changes in the frequency, intensity, and predictability of precipitation. This means water is more scarce, and agriculture abilities are limited.

Which best completes the chart above

Answers

Answer:

The answer seems to be B.

Explanation:

If earth were smaller than it is, but the alexandria-to-syene distance were the same, would the shadow of the vertical pillar in alexandria be longer or shorter at noon during the summer solstice

Answers

Answer:If the the Earth were smaller than it is and the Alexandria-to-Syene distance were the same, the shadow of the vertical pillar in Alexandria would be longer.

Explanation:Hope this answers your question

If the Earth were smaller and the distance between Alexandria and Syene was similar, the silhouette of the vertical pillar in Alexandria would be longer.

How was the distance between Alexandria and Syene?

Eratosthenes then measured the angle of a shadow produced by a stick at midday on the summer solstice at Alexandria and discovered it was around 7.2 degrees or 1/50 of a complete circle. He reasoned that if he knew how far Alexandria was from Syene, he could simply calculate the circumference of the Earth.

For more information about Eratosthenes refer to the link:

https://brainly.com/question/1995686

#SPJ4

All of the following are indicators of an advanced ancient civilization except
A. stepped pyramids or other sophisticated structures
B. organized religion
C. little trade with outsiders
D. advanced bureaucracy and written language
Please select the best answer from the choices provided.
A
ОООО
C
D

Answers

Answer: A is your awnser

Explanation:

Answer:

A is your answer i think

Explanation:

please mark me the brainiest

its b Because map projections must turn a 3-D world into a 2-D map, they will always have the problem of __________.
A.
accuracy
B.
distortion
C.
estimation
D.
elevation

Answers

Answer: it's b Because map projections must turn a 3-D world into a 2-D map, they will always have the problem of B distortion.

Explanation: B. distortion

What is the only state capital not accessible by road?.

Answers

Answer:

Juneau Alaska

Explanation:

only a car ferry

What do you mean by Lithosphere?​

Answers

The lithosphere is the rocky outer part of the Earth. It is made up of the brittle crust and the top part of the upper mantle. The lithosphere is the coolest and most rigid part of the Earth.

hope it helps...!!!

In simple language it is outermost part of planet or any heavenly body consisting solid land form.

NEED HELP ASAP !!!!
Certain steps in the mineral extraction process can often have a lasting impact on Earth. Which of the following three choices best describe possible impacts when land is cleared for mining and drilling of minerals?

A
Risk of flooding in the area decreases.
B
Concentration of minerals in the ground increases.
C
Local vegetation is damaged or removed.
D
Animals move to new locations in search of food sources.
E
Local vegetation becomes over abundant as soil is placed elsewhere.
F
Flooding increases as a result of lower water absorption within compacted soils.

Answers

Things that happen when land is cleared for mining and drilling are:

C. Local vegetation is damaged or removed.D. Animals move to new locations in search of food sources.F. Flooding increases as a result of lower water absorption within compacted soils.

What happens when land is cleared for mining?

Local vegetation will be damaged and removed by the clearing of the land which would lead to animals leaving the area to find newer food sources to replace the cleared plants.

There will also be an increase in flooding because the removal of plants affects the ability of water to be absorbed by soil.

Find out more on effects of land clearing at https://brainly.com/question/26678908.

Which terms describe the different movements of earth? check all that apply.

Answers

Earth's movement is described by two terms, i.e., rotation and revolution. Rotation is the movement of the earth on its own axis, while revolution is the movement of the earth around the sun in an orbit.

What is astronomy?

Astronomy is the systematic study of celestial objects using concepts from mathematics, physics, and chemistry.Astrophysics is a part of astronomy that applies concepts of physics to space.

Thus, Rotation & Revolution are the correct terms

To know more about Astronomy click on the link below:

https://brainly.com/question/5165144

Draw a positive-feedback loop for the greenhouse effect of water vapor and a positive-feedback loop for polar ice melt.

Answers

A Positive Feedback loop is a situation where a reaction towards a given direction triggers additional changes or reactions in the same direction.

What is an example of a Positive Feedback Loop?

For example, imagine that there is an increase in greenhouse gas, and it leads to a warming effect.

To counteract the effect of warming effects technologies that trigger more greenhouse gases are released into the atmosphere.

See the attached drawing and the link below for more about Positive Feedback Loop


https://brainly.com/question/19911791

Using relative dating techniques, give a relative age for the fault in Figure 13-1?

Fault occured sometime between units ________ & ________.

Answers

Answer:Despite seeming like a relatively stable place, the Earth's surface has changed dramatically over the past 4.6 billion years.

Explanation:Despite seeming like a relatively stable place, the Earth's surface has changed dramatically over the past 4.6 billion years. Mountains have been built and eroded, continents and oceans have moved great distances, and the Earth has fluctuated from being extremely cold and almost completely covered with ice to being very warm and ice-free. These changes typically occur so slowly that they are barely detectable over the span of a human life, yet even at this instant, the Earth's surface is moving and changing. As these changes have occurred, organisms have evolved, and remnants of some have been preserved as fossils.

Select the correct answer from each drop-down menu.
There are four main types of economic systems in use today.
• In a
economy, people generally produce what they need to survive.
• AC economy is a system in which resources and means of production are controlled by the government
• In a
economy, supply and demand dictate production, distribution, and investment decisions.
• Finally, a combination of market and command systems is found in a
economy, in which free markets exist with some
government intervention.

Answers

Based on the characteristics of the economic systems, the correct descriptions are:

Traditional -  people generally produce ... survive.Command - resources and means of production ... government.Market - supply and demand dictate ... investment decisions.Mixed - a combination of market and command systems ... free markets exist with some government intervention.

What are the types of economic systems?

Traditional systems would see citizens engaged in production for quantities that are just enough for them to survive. Command economies have the government controlling all means of production.

Market economies are the opposite of command economies because supply and demand forces control things. Then there are mixed economies that combine market and command economies in varying degrees.

Find out more on Mixed economies at https://brainly.com/question/26415003.

If you wanted to fly through a cloud, which atmospheric layer would you fly through?.

Answers

Answer:

The lower Stratosphere

Explanation:

that's where planes fly to avoid heavy amounts of turbulence

Answer:

Commercial jet aircraft fly in the lower stratosphere to avoid the turbulence which is common in the troposphere below. The stratosphere is very dry air and contains little water vapor. Because of this, few clouds are found in this layer and almost all clouds occur in the lower, more humid troposphere.

Other Questions
what is the right answer An atom moving at its root mean square velocity at 100. c has a wavelength of. Which atom is it? assume that the atom is the most abundant isotope of an element. why kids shouldn't do extreme sports Why is carbon dioxide called a gas and not vapour? The area enclosed by the graphs of y = 1/x, y = 1, and x = 3 is rotated about the line y = -1. Find the volume and show steps. Siamese cats and Himalayan rabbits have light-colored bodies but darker-colored paws, ears, and tail due to an enzyme whose activity varies with temperature. This is an example of ______. A snack bar weighs 61g, and 10% of the weight is apple. How manygrams of apple are in the snack bar? Which principle of heat exchange is the most important explanation for why birds look larger in colder weather because they fluff their feathers?. 3. In the accompanying diagram, a rectangular container with the dimensions 10 inches by 15 inches by 20 inches is tobe filled with water, using a cylindrical cup whose radius is 2 inches and whose height is 5 inches. What is the maximumnumber of full cups of water that can be placed into the container without the water overflowing? By 1294, the Mongols had gained control over the Middle East andHowever, they had not conquered Egypt and The chair of the board of directors says, There is a 50 percent chance this company will earn a profit, a 30 percent chance it will break even, and a 20 percent chance it will lose money next quarter. a. Use an addition rule to find the probability the company will not lose money next quarter. b. Use the complement rule to find the probability it will not lose money next quarter In the grocery store, eggs are sold in cartons of 12. Write fiveordered pairs made from the corresponding terms of thesetwo patterns, based on selling 0 to 4 cartons of eggs.Pattern A: number of cartons soldPattern B: number of eggs soldPlot the points on the plane to the right. Describe the relationship between the coordinates of the ordered pairs. Define acid and base according to lewis theory, arrhenius theory and lawn theory Find the value of x to the nearest tenth.26.226.380.81,530 Explain what is meant by the "health of a population. What affects the health of a population? If you want to be 99% confident of estimating the population mean to within a sampling error of 14 and the standard deviation is assumed to be 14, what sample sizeis required?The sample size required is(Round up to the nearest integer.)InHelp me solve thisView an exampleGet more helpClear allCheck answer Who stated that people were born with the right to life, liberty, and property? Why did France attack Germanys western border in 1939 Mrs culpeppers and and mr Cochran s class recorded the number of books each student read in a week Which of the following statements is true about the data sets? Calculate the volume in mL of 0.279 M Ca(OH)2 needed to neutralize 24.5 mL of 0.390 M H3PO4 in a titration.Note: the answer should have 3 significant digits. Do not include the unit mL in the answer.