What happens when an electron falls to a lower energy level?

Why are people not able to skip a dive to the deepest part of the ocean

Building glycogen from glucose molecules is an example of

What effect would average population growth have on land usage? a. urban use of land would rise to more than 30 percent of available land. b. industrial use of land would rise to more than 30 percent of available land. c. the percentage of available land used as cropland would stay the same. d. cropland would fall to about 10 percent of available land.