Suppose that two ancient types of plants, one that grows in the winter and one that grows in the summer, appear together in the fossil record for two periods in the geologic time scale. In the fossil records from a third period in the geologic time scale, one of the plants is suddenly missing. Which of the following would best explain why one type of plant disappeared but the other did not?
A. climate change
B. pollution
C. hunting
D. volcanic eruption

I'm not positive what the answer is but I'm going to use process of elimination to say it isn't pollution or hunting, other than that I'd say it would be climate change, but it could be volcanic eruption.

the cells uses some of the atoms of the glucose molecules to atp molecules. the atoms of the glucose molecules will then be converted into energy which will be eventually stored in atp. the energy produced which are stored in atp are coming from the glucose’s chemical bonds.