Water Cycle
Percentages
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100
Rain, snow, sleet, and hail are what part of the water-cycle?
Precipitation
100
In general, how much of our water is used on lawns and landscapes?
50%
100
Who uses the most water in Colorado?
Agriculture ~85%
100
Name the scientific field which studies water and its movement.
Hydrology
200
Where does water that goes down the storm-drain end up?
Through the storm-drain system and eventually in our rivers
200
How much of the earth's water is fresh water?
3%
200
On the average in Colorado, how many inches of snow does it take to make 1" of water?
12 inches
200
How much of the earth's surface is covered by ocean?
71% but contains 97% of the earth's water
300
What happens to your water after you use it?
It goes down the drain to the sanitary sewer system
300
How much of the earth's surface is water?
80%
300
Is there the same amount of water on earth today as when it was formed billions of years ago?
Yes
300
Name a purpose for building a dam on a river to create a reservoir?
Irrigation, flood control, water storage
400
What are the three forms water occurs in?
Liquid, solid, gas (gaseous)
400
How much of the earth's water is available for human consumption?
1%
400
About how much water should a person drink per day to maintain good health?
8 glasses (64 ounces)
400
What country boasts the most dams?
China 80,000 dams. US 2nd most 75,000 dams
500
What single element, added to water by man, has virtually eliminated all waterborne diseases?
Chlorine
500
What is the largest single indoor water-using device in the average home?
Toilet- 40% Toilets made before 1993 use 3.5-7 gallons per flush (gpf), while newer, more efficient models use 1.6 gpf
500
How much of the human body is water?
approximately 70%
500
What is bigger, the Pacific Ocean or all the land in the world?
Pacific
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