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demigod0701
12.02.2020 •
Physics
is the most abundant gas in Earth’s atmosphere.
Which term best completes the sentence?
nitrogen
methane
oxygen
carbon dioxide
Solved
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Ответ:
Nitrogen
Explanation:
Composition of the Atmosphere
The atmosphere contains several gases, most of them in small amounts, which may include some pollutants and greenhouse gases.
The most abundant gas in the atmosphere is nitrogen (78%), followed by oxygen (21%) as the second. The inert gas called Argon is the third most abundant gas in the atmosphere (less than 1%).
Finally, the fourth most abundant gas in Earth's atmosphere is Carbon dioxide
Ответ:
b) gradually is transformed into other forms of energy.
Explanation:
According to the virial theorem, the gravitational potential energy of the the gas cloud is converted into two forms of energy. The collapse provides enough kinetic energy to the particles for hydrogen fusion to occur. Due to the collisions between particles the cloud will heat up. The other part of the gravitational potential energy is released through radiation due to the nuclear fusion.