please answer these please please
Answers
Answer:
1) Nitrogen accounts for 78 percent of the atmosphere, oxygen 21 percent and argon 0.9 percent. Gases like carbon dioxide, nitrous oxides, methan and ozone are trace gases that account for about a tenth of one percent of the atmosphere.
2)Troposphere, stratosphere, mesosphere, thermosphere, exospher
3)Though the earth is called the blue planet, yet we face water shortage because our of 2/3rd of the water available only 1 percent is fit for use of human purpose
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Answer:
Explanation:
Q1. The atmosphere is composed of a mix of several different gases in differing amounts. The permanent gases whose percentages do not change from day to day are nitrogen, oxygen and argon. Nitrogen accounts for 78% of the atmosphere, oxygen 21% and argon 0.9%.
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Q2.The atmosphere is comprised of layers based on temperature. These layers are the troposphere, stratosphere, mesosphere and thermosphere. A further region at about 500 km above the Earth's surface is called the exosphere.
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Q3.Though our Earth is called the blue planet, yet we face water shortages because our of 2/3 rd of the water available only 1 % is fit for use for human purpose.