5 Written questions
5 Matching questions
- ice wedging
- soil horizon
- a The removal of rock particles by wind, water, ice, or gravity
- b Dark-colored organic material in soil.
- c The layer of soil that differs in color and texture from the layers above or below it.
- d wedges of ice in rocks widen and deepen cracks
- e The layer of soil beneath the topsoil that contains mostly clay and other minerals.
5 Multiple choice questions
- A measure of how well soil supports plant growth.
- characteristic of a material that is full of tiny, connected air spaces that water can seep through
- The solid layer of rock beneath the soil
- Rich, fertile soil that is made up of about equal parts of clay, sand, and silt.
- process in which sediment is laid down in new locations
5 True/False questions
oxidation → a chemical change in which a substance combines with oxygen, as when iron oxidizes, forming rust
weathering → earth materials deposited by erosion
litter → the loose layer of dead plant leaves and stems on the surface of the soil
decomposer → process in which sediment is laid down in new locations
acid rain → rain containing high amounts of chemical pollutants.