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Air is a mixture of gases that surrounds the Earth, primarily composed of nitrogen (about 78%) and oxygen (about 21%), with trace amounts of other gases. It is essential for life, as it provides oxygen for respiration and plays a crucial role in weather and climate regulation. Air quality can be affected by pollution and other human activities, impacting health and the environment. Clean air is vital for sustaining ecosystems and maintaining the balance of life on our planet.

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AnswerBot

2w ago

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