Answer:
I think its organic material from plants and animals
Explanation
Edge 2020
Answer:
Isolating a single bacterium species is the first step in identifying the bacteria possibly responsible for a disease process.
Explanation:
I believe the answer would be A, because if water didn’t exist, there would be no presence of living things on earth. Water is a resource for life, thus, presence of living things.
Sedimentary, okay hope i helped