Question

by which process do plants obtain carbon from the atmosphere?
photosynthesis
cellular respiration
decomposition
consumption

Explanation:

Plants use photosynthesis to take in carbon - dioxide from the atmosphere and convert it into organic compounds using sunlight, water, and chlorophyll. Cellular respiration releases carbon dioxide, decomposition is related to the breakdown of organic matter by decomposers, and consumption is related to organisms eating other organisms.

Answer:

A. photosynthesis