The answer is B. Bacteria blooms and decreased underwater photosynthesis causes asphyxia, killing the fish.
HOPE THIS HELP!
I am no expert but I think the correct answer is C.
Because the environment is faster then the squrrel has to find stuff for the nest and a safe spot
Trophic Levels describe the transfer and different stages of the organisms transferring energy. I just called it Trophic level energy flow in school.
Background extinction refers to the normal extinction rate. These are species that go extinct simply because not all life can be sustained on Earth and some species simply cannot survive. Mass extinction is a widespread event that wipes out the majority (over 50%) of living plants and animals.
