| A | B |
|---|
| natural resource | something found in nature that is used |
| weathering | breaking down of rock into smaller pieces due to weather |
| renewable resource | is destroyed but can be replaced |
| nonrenewable resource | cannot be replaced once used |
| erosion | wearing away of soil due to wind or water |
| nutrients | materials in the soil that plants need to live and grow |
| clay | type of soil fewest amount of rock, holds the most water |
| humus | decayed pland and animal material that makes soil fertile |
| sand | type of soil most amount of rock, holds the least amount water |
| silt | type of soil which holds water but allows for drainage |
| fossil fuels | oil, coal, natural gas |
| conservation | saving and preserving resources |
| adaptation | how plants and animals adjust to their environment |
| top soil | top layer of soil, has the most nutrients |
| sub soil | middle layer of soil, contains the most water |
| bed rock | bottom layer of soil, has the fewest nutrients and least amount of water. |
| components of soil | rock, sand, silt, clay, humus |
| fresh water | only makes up about 3% of total water supply |
| parent rock | layer of soil between subsoil and bed rock |
