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Lesson 3 Assessment: Percent of Fresh Water on Earth
1. A pie chart shows the percentages of something out of the total.
A. true
B. false
2. Most of the water on Earth is fresh water.
A. true
B. false
3. In what reservoir is most fresh water on Earth located?
A. lakes
B. rivers
C. groundwater
D. icecaps and glaciers
4. Use the following to answer questions 4 - 6. The pie chart shows how much water is used in a typical home in various ways.
Which of the following uses the
most
water in a typical home?
A. showers
B. toilets
C. faucets
D. clothes washer
5. If drinking water makes up 50% of the use in the “Other” category, about what percentage of water in a typical home is used for drinking?
A. 2.6%
B. 5.3%
C. 50%
D. 265%
6. If a person who lived in this typical home wanted to reduce their monthly water bill, all of the following would be ways to do this
except
:
A. taking shorter showers.
B. only washing full loads of clothes.
C. repairing leaking faucets.
D. flushing the toilet more often.
7. Icebergs floating in the ocean mainly consist of salt water.
A. true
B. false
8. A reservoir is a place where water is stored.
A. true
B. false
9. Desalination is a process that removes salt and other dissolved substances from ocean water to make fresh drinking water.
A. true
B. false
10. What is 33% of 9 gallons of water?
A. 0.3 gallon
B. 3 gallons
C. 30 gallons
D. 33 gallons
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