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Water and Soil Conservation

Water and Soil Conservation. Water covers most of the earth’s surface Our bodies are 90% water Potable water: drinkable. Freshwater: flows from the land to ocean and has little or no salt Tidewater: the water that flows up the mouth of a river as the ocean tide rises or comes in. Food Chain.

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Water and Soil Conservation

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  1. Water and Soil Conservation

  2. Water covers most of the earth’s surface Our bodies are 90% water Potable water: drinkable

  3. Freshwater: flows from the land to ocean and has little or no salt • Tidewater: the water that flows up the mouth of a river as the ocean tide rises or comes in

  4. Food Chain • Bay and ocean --- Insects and shellfish ---people, animals, birds

  5. Water – Universal Solvent Causes things to: -rust -corrode -decompose -dissolve

  6. Habitat for microorganisms Carries life-supporting oxygen Gathers and transports nutrients Cleans and purifies Neutralizes and removes waste Purposes of water:

  7. Land provides: 1. Solid foundation 2. Nutrition and support for plants 3. Space for work and play 4. Heat and compression chamber Land erosion: wearing away of soil due to wind & water

  8. Deserts: areas with continuous severe water shortage Precipitation: rains, snow, sleet, and hail Evaporation: change liquid to a vapor or gas

  9. Water table: level below which soil is saturated or filled with water Springs: water held below the water table may run out onto the surface in the form of this

  10. Free/Gravitational water: water that drains out of the soil Capillary water: the moisture that plant roots absorb from the free water Hygroscopic water: water held too tightly for plant roots to absorb Plants will die if their roots can’t get air -happens if the soil is saturated

  11. Conserving water • Save clean water • Dispose of household products carefully • Care for lawns, gardens, and farmland carefully • Practice sensible pest control

  12. 5. Control water run-off 6. Control soil erosion 7. Avoid spilling gas, fuel, and oil 8. Keep spills from seeping 9. Maintaining septic system

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