Answer:
The common hippopotamus, or hippo, is a large, mostly herbivorous, semiaquatic mammal and ungulate native to sub-Saharan Africa. It is one of only two extant species in the family Hippopotamidae, the other being the pygmy hippopotamus. The name comes from the ancient Greek for "river horse".
Its true it affects the pH balance
D. The final substance in Beaker A is a mixture and in Beaker B is a pure substance.
I believe that would be a decomposer
