Plz need fast if the amount of potential energy decreases and the amount of kinetic energy increases and speed increases does the total energy increase or decrease?

The different layers of gases that extend form the surface of the earth into space

Afish fossil is found in a rock. a foot bone and tooth are found in an older layer of the same rock. what can scientists learn from the rock? a) the area changed from land to water. b) the area changed from water to land. c) the area has always been land. d) the area was once an ocean.

Typically, a cover letter should be no longer than