Main Sources of Water-- Luciana Alvarado

Main Sources of Water-- Luciana Alvarado

1. Ice

   • The 1.7 of water in the world comes from Ice caps, Glaciers, & Permanent snow
     • Glacial ice covers 10-11 percent of all land.
       • Made of one molecule of oxygen and two atoms of gas.
         • The 69,70% of FRESH water comes from ice and glaciers

2. Oceans

   • The 97.50% of water on the world is salt water
     • Every 1 litre (1000 mL) of seawater there are 35 grams of salts and sodium chloride
       • Oceans cover around the 70 % of the Earths water

3. Lakes and Rivers

   • The 00,30% of FRESH water on the planet is surface water
     • Of all the water on the world the 0.013% comes from lakes and the 0.00029% from rivers and ponds

4. Groundwater

   • The 30% of FRESH water of the world is groundwater
     • 64% of groundwater is used for irrigation to grow crops

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