I believe it is b. The rest don’t really work or make sense
Explanation:
carbon dioxide released during decay.
False, that is one thing many people were always doing, back then.
Because that ecosystem is covered in rocks and soil fragments. These fragments can be moved by the wind, water or even gravity.
These fragments can lead towards erosion and deposition. That is why people are trying to plant new grass and trees there so it won't get washed away when the next storm hits.
Hope this helped :)
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