During the winter time, the total number of hours of sunlight decreases. what effect would this have on the process of photosynthesis? a. the rate of photosynthesis would decrease and less glucose would be produced. b. the rate of photosynthesis would increase and more glucose would be produced. c. the amount of available sunlight does not influence the rate of photosynthesis. d. it would have no effect on plants having needles instead of leaves, that stay green all year long. eliminate