In two or three sentences, explain where geothermal energy comes from and why we have to drill so far down to access superheated fluids.

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.

Which of the following is the source of energy for photosynthesis? a.) glucose b.) chlorophyll c.) carbon dioxide d.) sunlight

Identify the composition of oceanic and continental crystal rocks. in a model of earth’s interior, where would these rocks appear?