The study of soil has changed our world because soil filters our water, provides needed nutrients for our plants and forests. It also helps regulate Earth’s temperature as well as many greenhouse gases.
The CORRECT ANSWER is a they needed more slaves
After the civil war, much of the ownership for land was unattainable for free slaves due to the government opposing the idea. Instead most African slaves had to become sharecroppers on plantations where they had previously been slaves.
Answer:
to prevent government leaks after the release of the Pentagon Papers
Explanation: