The appropriate answer is a. the conversion of radiant energy to chemical energy. Plants use light from the sun to convert carbon dioxide and water to glucose. An important bi-product of this reaction is oxygen which is vital to all life on earth. When humans consume glucose and do work they are converting chemical energy into heat energy and mechanical energy.
I'm pretty sure the answer is B
Upper surface of base of the skull
Answer:
there would be the equivelant to a very harsh winter
Explanation: