Question

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

Explanation:

Plants obtain carbon from the atmosphere through photosynthesis. In this process, plants use sunlight, carbon dioxide (from the atmosphere), and water to produce glucose (which contains carbon) and oxygen. Consumption is related to organisms taking in food. Decomposition is the breakdown of organic matter. Cellular respiration is the process by which cells break down glucose to release energy, and it releases carbon dioxide rather than taking in carbon from the atmosphere.

Answer:

photosynthesis