Answer:
A. Mid-ocean ridge. I'm not sure if I'm right.
The plants observe carbon dioxide from the soil into the roots and transfer to the leaves where the photosynthesis process occurs. In the final stage of the photosynthesis, carbon dioxide in output oxygen to the atmosphere.
Animals and humans absorbed oxygen and transport it to carbon dioxide so the plants can absorbed the carbon dioxide from the atmosphere to photosynthesis .It is process that the plants does to survive and benefit the others living things.
Answer:
C is the answer to the question
Answer:
species richness is the number of species in an ecosystem
