Answer:
Troposphere
Explanation:
The troposphere is the lowest layer in the atmosphere, and where all the weather occurs. After the troposphere, there's the stratosphere, mesosphere, thermosphere, and exosphere.
I hope this helps!
Troposphere is the lowest layer of the earths atmosphere.
um i think 20
Explanation: because 20
hi
It contributes by breathing. CO2 is carbon dioxide we breath it out and plants convert it into oxygen.
the answer is 2
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