# Q  1    How is our atmosphere different from the atmospheres on Venus and Mars?

Earth's atmosphere is different from the atmosphere on Venus and Mars.

The major component of the atmosphere on Venus and Mars is found to be carbon dioxide constituting up to $95-97 \%$ of the atmosphere.

Whereas, the atmosphere of Earth is made of $79\%$ nitrogen and $20\%$ oxygen , with only a small fraction of carbon dioxide.

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