Question

How do you know that we are surrounded by air?​

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.

Air is present everywhere on earth.

We cannot see air, but we feel its presence in many ways.

You notice it when the leaves of the trees rustle or the clothes hanging on a clothes-line sway. ...

Winnowing is more effective in moving air.

Air is present as a thick blanket surrounding the surface of the earth.

Explanation:

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