Respuesta :

Sumikkogurashi

Answer:

A

Explanation:

I'm pretty sure it's A because fish = fish feces which = nutrients.

23jmatta

Answer:

D

Explanation:

"Making whales a protected species to increase the whale population."  This is the correct answer because more whales means more recycled nutrients.  Therefore, by protecting whales, more whales will play a role in the process of the "Whale Pump".