The mars store most of its carbon today in its atmosphere and on the surface rocks.
What is mars?
Mars is a celestial body. It is the planet closest to the Sun. It's the planet that lies beyond Earth. Mars is 142 million miles away from the Sun. It is around half the size of Earth.
The atmosphere of Mars is the gaseous layer that surrounds the planet. Carbon dioxide (95%), molecular nitrogen (2.8%), and argon make up the majority of it (2 percent ). Water vapor, oxygen, carbon monoxide, hydrogen, and noble gases are all present in trace amounts.
Hence in the atmospheric surface and on surface rocks, mars store most of its carbon today.
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