Earth has been shaped by actions that build up, or create, earth’s surface. these are called forces. actions that wear down, or destroy, earth’s surface are forces.

Select the correct answer from each drop-down menu. during the day, plants produce by splitting water molecules in the light-dependent reactions of photosynthesis. at the same time, plants use cellular respiration to produce some of the needed by the light-independent reactions to make sugars. during the night, plants produce because takes place.