Two major biological processes in the carbon cycle are
and

Explanation:

Photosynthesis by land plants, bacteria, and algae converts carbon dioxide or bicarbonate into organic molecules. Organic molecules made by photosynthesizers are passed through food chains, and cellular respiration converts the organic carbon back into carbon dioxide gas.

the awnser is d i think

i think the miocene epoch spans the time from 23 million to 12 million years ago.