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Conservation
Conservation of Water, Air, and Soil
| Term | Definition |
|---|---|
| conservation | the careful protection and saving of natural resources |
| glacier | A slowly moving body of ice on land |
| aquifer | An underground water supply |
| reservoir | A body of water used to collect and store freshwater |
| hydrosphere | The system where all of Earth’s water is located |
| distribute | To spread out |
| wetland | An ecosystem that helps remove pollutants from water |
| prototype | An original and simple model that let's you test out an idea. |
| ozone | A pale blue gas that is made of 3 molecules of oxygen; it is poisonous and explosive |
| smog | A mixture of smoke and fog that forms over cities. |
| ozone layer | A form of oxygen that protects living thing on Earth from the sun's harmful rays. |
| preserve | protect |
| water filter | a device for removing unwanted substances such as bacteria or harmful chemicals from drinking water |
| fossil fuels | a form of non-renewable energy sources such as coal, coal products. These fuels come from plants and animals that existed millions of years ago |
| soil | A mixture of bits of rock and once-living plants and animals |
| humus | dead plant and animal matter that has broken down |
| forest soil | thin layer of topsoil ; it has little humus; Heavy rains carries minerals deep into the ground. Plant needs long roots to reach minerals in soil. |
| prairie or grasslands soil | rich in humus; corn, wheat, and rye grow well in this soil |
| desert soil | sandy; rich in minerals; it doesn't have much humus; crops can grow well if water is piped in |
| weathering | breaking down of rocks into smaller pieces |
| erosion | the movement of weathered rock |
| deposition | the process by which weathered, eroded materials is taken from one location to a new location and dropped (deposited). |
| sediments | bits of soil or rock that may be eroded and deposited. |
| terracing | cutting lat shelves into a hillside. It looks like stairs or bleachers in a stadium. |
| wind break | Planting a row of trees around crops in order to block the wind |
| strip farming | Planting strips of grass between crops to hold down soil. |
| contour plowing | Plowing rows across a hill instead of up and down |
| crop rotation | Planting different crops on the same land in different years |
| fertilization | Adding nutrients back to the soil |
| pollution | adding harmful materials to soil, air, and water |