Where do most major earthquakes occur ?
(1) in the continental interiors
(2)at the mantle-core boundary
(3) randomly over earths surface
(4) in specific earthquake belts within the crust

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.

20 the compound al(nh3)2 has atoms of nitrogen.

Which of the following terms best matches this definition: the process where humans choose the traits that will be present in the next generation through breeding. question 4 options: genetic determinism artificial selection acquired selection natural selection