Answer:
C. The role of photosynthesis in transferring carbon dioxide from the atmosphere to the biosphere
Explanation:
Photosynthesis is a process in which plants (and some other organisms whose cells possess chlorophyll) transform the energy they receive from sunlight, water, and carbon dioxide into carbohydrates they use as food and oxygen, which they release back into the atmosphere. This is shown in the diagram you were given (pictured below).
Since plants are a part of the biosphere and they take carbon dioxide from the atmosphere, we can conclude that the diagram shows the role of photosynthesis in transferring carbon dioxide from the atmosphere to the biosphere.
