Photosynthesis is one of the main processes that is basically responsible for the function of all living things. Without it carbon would not be cycled, oxygen would not be made and plants would not be able to creat food for themselves and would have to rely on another source.
Because the environment is faster then the squrrel has to find stuff for the nest and a safe spot
I think the right answer is b
sorry what this means¯\_(ツ)_/¯