How does heart failure affect the lungs? a. blood leaves the lungs. b. fluid can build up in the lungs. c. carbon dioxide enters the lungs. d. too much oxygen enters the lungs.

atp is used for energy.

the answer is c. it will give up it's valence electron to the other atom.

the sun creates it's own light, also gives light and life to bunch of stuff like plants,animals,humans etc.photosyntesis is the process of making food which needs sun,water,nutrients etc.

answer; synapse; i believe this is correct,plz check first good luck;