5 Written questions
5 Matching questions
- ice wedging
- a the loose, weathered material on Earth's surface in which plants can grow
- b wedges of ice in rocks widen and deepen cracks
- c the grinding away of rock by other rock particles carried in water, ice, or wind
- d The layer of soil beneath the topsoil that contains mostly clay and other minerals.
- e The solid layer of rock beneath the soil
5 Multiple choice questions
- The layer of soil that differs in color and texture from the layers above or below it.
- rain containing high amounts of chemical pollutants.
- A measure of how well soil supports plant growth.
- a chemical change in which a substance combines with oxygen, as when iron oxidizes, forming rust
- Mixture of humus, clay, and other minerals that forms the crumbly, topmost layer of soil.
5 True/False questions
sediment → earth materials deposited by erosion
loam → Rich, fertile soil that is made up of about equal parts of clay, sand, and silt.
humus → Dark-colored organic material in soil.
deposition → The removal of rock particles by wind, water, ice, or gravity
mass movement → earth materials deposited by erosion