Because, without them, the dead animal will just sit there. So, having decomposers gets rid of the remains of the animal, and that way they can eat too. Hope it helps good luck!
The answer is B. Bacteria blooms and decreased underwater photosynthesis causes asphyxia, killing the fish.
HOPE THIS HELP!
That would be erosion. I know this because i spent years studying rocks and had straight passed all of it. Hope this helps. ;)
The total energy from an isolated system is constant; energy can be changed from one form to another, but can't be created or destroyed.
