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Weathering & Erosion
| Question | Answer |
|---|---|
| Exfoliation | Type of weathering caused by reducing pressure on a rock surface, allowing slabs of outer rock to break off in layers. |
| Regolith | The layer of rock and mineral fragments that nearly everywhere covers Earth’s surface. |
| Soil profile | A vertical section through a soil showing its succession of horizons and the underlying parent material. |
| Mass movement | The downslope movement of rock, regolith, and soil under the direct influence of gravity. |
| Water cycle | The constant movement of water among the oceans, the atmosphere, geosphere, and the biosphere. |
| Infiltration | The movement of surface water into rock or soil through cracks and pore spaces. |
| Meander | A loop like bend in the course of a stream. |
| Capacity | The total amount of sediment a stream is able to transport. |
| Porosity | The volume of open spaces in rock or soil. |
| Permeability | A measure of a material’s ability to transmit fluids. |
| Erosion | The incorporation and transportation of material by a mobile agent, such as water, wind, or ice. |
| Ground water | Water underground in the zone of saturation. |
| Water table | The upper level of the saturated zone of groundwater. |