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Cluster 1 Review
| Term | Definition |
|---|---|
| soil | the loose top layer of the Earth's surface; It is a mixture of sand, silt, clay, rock and humus |
| humus | decaying plant and animal material in soil |
| topsoil | the top layer that is a mixture of types of Earth. It is the perfect soil for plants. |
| soil properties | different characteristics of soil such as the color, texture, capacity to retain water, and ability to support the growth of plants |
| retain | to hold inside, as soil does with water |
| sediment | small pieces of rock broken down by weathering and deposited on the land or at the bottom of a body of water. |
| weathering | the breakdown of solid materials into very small particles by water, air, and other natural events. |
| erosion | the gradual wearing down of something from the effects of wind, water, or ice |
| deposition | the build up of land by the settlement of sediment and soil in a new location. |
| nonrenewable resources | a resource that once exhausted cannot be replaced in a short amount of time (oil, coal and natural gas) |
| renewable resource | a resource that can be replaced within a person's lifetime |
Created by:
engladej
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