Solar energy provides the reducing power within green leaves to convert CO2 and H2O into sugars. ... During illumination, leaf cells have both a source (respiration) and sink (photosynthesis) for CO2. Respiration in some species appears to be greatly stimulated by light.
Your answer to your Question is ...A: deep
These currents move water masses through the deep ocean—taking nutrients, oxygen, and heat with them. Occasional events also trigger serious currents.
I’m pretty sure the answer is c. Protista. Hope this helps!