I believe your answer is B :)
Answer:
Lungs.
Explanation:
Lungs are the organs that are responsible for gaseous exchange in humans. The lungs absorb oxygen from the air that is required for the process of respiration while on the other hand, carbon dioxide is transferred from the cells to the lungs through blood because carbondioxide gas is a waste material that is produced during respiration so it can be removed from the body with the help of lungs..
there is mostly billions of amount of water from raindrops each day i think.
If You want a EXACT number i'll say, 1,100.
D ribosomes because it makes the energy for the cells
