What is air?

Air is an essential, invisible gas that surrounds us and is crucial for life on Earth. It is a mixture of gases, primarily nitrogen and oxygen, with small amounts of other gases like carbon dioxide and helium. Air also contains water vapor, which forms clouds. It supports life by providing oxygen for animals and carbon dioxide for plants. Air molecules enable smells and sounds to travel. Additionally, air is used in generating electricity, drying hair, and tidying leaves. Without air, life on Earth would not exist.

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