An ocean basin is ? a. A continuous body of water that covers 70% of Earth’s surface
b. A deep trench along the floor of the ocean
c. A part of Earth’s surface covered by ocean water
d. The layer of the ocean closest to the surface

Humans can affect weathering and erosion in several ways.  humans cause  increases in acid rain and pollution, which increase the amount of  weathering  agents in the air and water, and then on land.for an easy answer: 1) acid rain2) pollution

When scientist examine data such as historical documents, they are using the "scientific methods"