It would help if you had question or attached an image.
Chemical energy is used to pump protons through a proton pump, creating a high concentration of protons ( H+ ) inside the thylakoid disk. ATPase has a channel that allows for the facilitated diffusion of protons back in through the membrane. this activates ATPase, which in turn catalyzes the formation of ATP.
Answer:
I think the answer has to be D/ the distance from the sun to the planet while it sweeps out the area
