What happens during the s phase of the cell cycle that is essential for cell division

Which of the four major uses is predicted to change the least by 2020?

Which of the following is the best definition for the process of photosynthesis? a.) plants digest sugars to make energy. b.) plants use oxygen and glucose to make carbon dioxide. c.) plants use sunlight and carbon dioxide to make sugars. d.) plants use sunlight to make chlorophyll and chloroplasts.

20 the compound al(nh3)2 has atoms of nitrogen.