Beginning of Essay
What do we use all this for? Of all the that falls to California, 60% is immediately returned to the atmosphere by evaporation or native plant use. The rest runs off into rivers, lakes, streams and the table, where it is available for human use. We will expla ....

Middle of Essay
.... gas, it takes 10 liters of water. Another big industrial use of water is disposal of waste products. They use water to wash away all the garbage on the floor, and to flush away dirty or contaminated water. They also throw out the hot water that is left after they cool metal. The second biggest user of water is agriculture and food processing, at 42% of total annual water use. More than 380 billion liters (100 billion gallons) of water are used for irrigation of crops each day in the United States. A fully grown cotton plant uses about a gallon a day. It takes about 3,040,000 liters (800,000 gallons) of water to grow an acre of cotton. Irrigation ....