The answer is *C. is a slow, gradual change over time*.
The organism that is likely to carry out this process is a plant
Answer:atmosphere
Explanation:Earth's atmosphere is a layer of gases surrounding the planet Earth and retained by the Earth's gravity. It contains roughly 78% nitrogen and 21% oxygen 0.97% argon and carbon dioxide 0.04% trace amounts of other gases, and water vapor. This mixture of gases is commonly known as air.
D. is a recent development resulting from the burning fossil fuels
