weathering and soil formation – section 2-1 rocks and weathering 1.b 2.a 3.mechanical weathering,...

Weathering and soil formation – section 2-1 Rocks and Weathering

1. B2. A3. Mechanical weathering, chemical weathering4. Mechanical5. Freezing and thawing, release of pressure, growth of plants, actions of

animals, abrasion6. Grinding away of rock by other rock particles carried in water, ice, or wind7. Chemical8. Water, oxygen, carbon dioxide, living organisms, and acid rain9. False10.C11.A12.D13.E14.B15.true

16.Oxidation17.Marble, limestone18.Plants dissolve rock by producing weak acids around their roots.19.Climate20.True21.Permeable22.As water seeps through the spaces in the rock, it removes dissolved

material formed by weathering.23.It occurs more quickly because chemical reactions occur faster at higher

temperatures.

Changing Earth’s Surface – 3-1

1. The process by which natural forces move weathered rock and soil from one place to another.2. Gravity, glaciers, wind, running water, waves3. Sediment4. Deposition occurs where the agents of erosion lay down sediment.5. a, b, c, d6. False7. True8. B9. D10. A11. C