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frutty [35]
2 years ago
6

Chemical energy sources are often portable and provide large amounts of energy. Fossil fuels are one kind of chemical energy sou

rce. Most of the energy we use in the United States is generated by the combustion of fossil fuels. However, fossil fuel combustion adds greenhouse gases to the atmosphere, mostly CO2. One measure of the total amount of greenhouse gases that are emitted into the atmosphere each year is called a carbon footprint. Read this article to compare the carbon footprint of an average person in the United States to an average person around the world. Knowing that greenhouse gases are contributing to climate change, how can we reduce our carbon footprint, particularly in the United States? Could hydrogen fuel replace fossil fuels in the future? Why or why not? Should the size of a person’s carbon footprint be limited by law? Why or why not?
Physics
2 answers:
zlopas [31]2 years ago
7 0

Answer:

You can reduce our carbon footprints by using renewable energy,calculate your carbon footprint and make changes,use car less and minimize driving and walk or cycle more and reduce water use. Hydrogen fuel can not replace fossil fuels this is because fossil fuel use more energy and make more pollution.

Explanation:

Tems11 [23]2 years ago
3 0

For an individual to reduce his or her carbon footprint, they can:

  • Reduce the use of automobile
  • switch other renewable energy sources like solar energy

Hydrogen fuels are clean energy sources and should replace fossil fuels.

Carbon footprint should be regulated by law in order to reduce the amount of greenhouse gases.

<h3>What is a carbon footprint?</h3>

A carbon footprint is the measure of the total amount of greenhouse gases that are emitted into the atmosphere each year by an individual.

Greenhouse gases are responsible for global warming.

For an individual to reduce his or her carbon footprint, they can:

  • Reduce the use of automobile
  • switch other renewable energy sources like solar energy

Hydrogen fuels are able to replace fossil fuels as they are clean energy sources.

An individual's carbon footprint should be regulated by law in order to reduce the amount of greenhouse gases released.

In conclusion, greenhouse gases are responsible for global warming.

Learn  more about greenhouse gases at: brainly.com/question/2241458

#SPJ1

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Effect of Heat on Matter Chemical Physical Change Change​
Oduvanchick [21]

Answer:

<h3>⭐Application of heat to certain substances causes only physical changes in which no new substance or substances are formed. Application of heat to some substances causes chemical changes, or chemical reactions, in which one or more new substances are formed, with different properties from the original.</h3>
7 0
3 years ago
A swimmer is capable of swimming 0.42 m/s in still water. part a if she aims her body directly across a 66-m-wide river whose cu
satela [25.4K]
<span>If the swimmer is swimming perpendicular to the current, it will take her 66m / 0.42 m/s = 157.14 seconds to cross the river. At the same time, the current will be taking her downstream at a rate of 0.32 m/s. So, when she reaches the opposite bank, her total downstream distance traveled will have been 0.32*157.14 = 50.28 meters.</span>
3 0
4 years ago
How much brighter is a sun-like star than the reflected light from a planet orbiting around it?.
Digiron [165]

It is about a billion times brighter.

<h3>What is the brightness of a star called?</h3>
  • A star's apparent magnitude, or how bright it seems to be from Earth, and absolute magnitude, or how brilliant it looks at a standard distance of 32.6 light-years, or 10 parsecs, are words used by astronomers to describe stellar brightness.
<h3>How bright are planets compared to stars?</h3>
  • Although planets and stars light up the night sky, planets usually appear much brighter than most stars.
  • Astronomers use astronomical scales to measure the relative brightness of celestial bodies, and many planets fall within the range easily visible to the eye.

To learn more about planets from the given link

brainly.com/question/1286910

#SPJ4

6 0
2 years ago
Which one has more thermal energy?
Digiron [165]

Answer:

a bathtub full of warm water

Explanation:

Even though the water in a filled bathtub may be at the same temperature as water in a teacup, the water in the bathtub has more thermal energy because it contains a greater number of water molecules.

8 0
3 years ago
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What can you infer about a wave with a long wavelength?
katovenus [111]

Answer:

It has a high frequency

Explanation:

3 0
3 years ago
Read 2 more answers
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