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Is the air we breathe today the same that existed thousands of years ago? Class 8

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Science Class 8 Science 149 views May 12, 2026 Reviewed & updated Oct 02, 2026
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Is the air we breathe today the same that existed thousands of years ago? Class 8

Is the air we breathe today the same that existed thousands of years ago? Class 8

Answer:

The mix of gases in Earth's atmosphere -mainly nitrogen and oxygen-has stayed largely the same for thousands of years. Natural processes like breathing, photosynthesis, and volcanic activity recycle and shuffle these molecules, so many of the same atoms have been breathed by living creatures over millennia.

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