look at the figure above. which atmosphere layer has around 80 percent of the mass of the earths atmosphere?

Ais a landform that is formed at the mouth of a river from the deposition of sediment carried by the river as the water flows.

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 molecules can be broken down into simple sugars? a. nucleic acid b. protein c. lipid d. carbohydrate