Use what you have learned about the tendency of potential energy to decrease to try to explain how lightning occurs.

c. movement because i took the test and it lets me review my answers

but there is no

i guess you forgot putting it.

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs

the answer is c on e2020, bud.