Answer: B. Helping civilizations grow lots of food
Explanation: APEX
Answer:
The counterculture movement largely was in support of the antiwar movement. They organized protests while brandishing signs promoting peace, love, and drugs. Burning draft cards were also a symbol of the movement and became iconic of the anti-war movement.
The correct answer is:
An understanding of the number and size of leftover planetesimals in the early solar system.
The giant-impact hypothesis proposes that the Moon was created out of what was left of a collision between Earth and an astronomical body the size of Mars, around 4.5 billion years ago, in the Hadean eon. The heavy bombardment was a period when leftover planetesimals hit planets during the solar system's first hundred million years.
A. End slavery in the confederate states.