Question

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Answer 1

Answer:

Air is the invisible mixture of gases that surrounds the Earth. Air contains important substances, such as oxygen and nitrogen, that most species need to survive. ... Standard Dry Air is made up of nitrogen, oxygen, argon, carbon dioxide, neon, helium, krypton, hydrogen, and xenon.

Answer 2

Air pollution is a nature that is found everywhere it is found in our lungs our body as well as in our surrounding whether it is water soil or Sky. It is made up of various gases. Air is essentially a mixture of gases, dust particles and water vapor.

The three main gases present in air and nitrogen carbon dioxide and oxygen. Importance of air are:-

• we breathe the oxygen present in air to keep ourselves alive.
• air is used to sail in boats on water

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