Answer:
1. Water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering. Once a rock has been broken down, a process called erosion transports the bits of rock and mineral away.
2. Soils are a combination of weathered rock - weathered means broken down physically and chemically altered (by rain, snow, and exposure to air) - with contributions from plant life - roots, leaves, all of it usually modified by being moved around and adjusted by biological means - earthworms and insects.
We have layers of soil, BECAUSE the Earth’s crust is composed of rock.
Correct me if im wrong:)
