| A | B |
| fertilizer | manure or chemicals that make soil better |
| manure | a natural fertilizer |
| fertile | soil that is good for growing |
| growing season | the number of days crops can be grown |
| irrigation | ditches or pipes used to help water crops |
| aquifers | a layer of rock that helps trap water underground |
| food processing | putting animals or crops into the boxes, cans or bottles we buy |
| environment | the surroundings people, plants and animals live |
| renewable | can be replaced |
| nonrenewable | cannot be replaced |
| fuel | something burned that gives heat |
| fossil fuels | coal, oil and natural gas |
| population | the number of people in an area or place |
| economy | the way people use their resources to meet their needs and wants |
| conservation | the careful use of natural resources |
| mineral | a natural resource found in earth's crust |
| climate | a pattern of weather in a certain place |