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Facts About Water
供稿人: Ochs
  • 1. What percentage of the earth's water is freshwater?
A) 25%
B) 8%
C) 5%
D) 3%
E) 12%
  • 2. What is the source of energy for the water cycle?
A) Wind energy
B) Ocean tides
C) Coal fired power plants
D) The sun
E) The earth's rotation
  • 3. What is the name for a small stream that flows into a bigger stream?
A) Tributary
B) Dendritic stream
C) Loptic stream
D) Small stream
E) Lentic stream
  • 4. What is the largest ocean?
A) Indian
B) Lake Superior
C) Pacific
D) Atlantic
E) Arctic
  • 5. Which of these is not one of the five Great Lakes?
A) Ontario
B) Superior
C) Michigan
D) Huron
E) Hudson
  • 6. What is the process by which vapor becomes a liquid or solid?
A) condensation
B) infiltration
C) evaporation
D) precipitation
E) transpiration
  • 7. What is most of the freshwater used for in the USA?
A) irrigation
B) industry
C) mining
D) public supply
E) livestock
  • 8. What state uses the most freshwater in the USA?
A) Florida
B) California
C) New York
D) Colorado
E) Arizona
  • 9. What state uses the most water for mining?
A) Washington
B) Oklahoma
C) Wyoming
D) Texas
E) Montana
  • 10. What makes water smell like rotten eggs?
A) dead animals in the water
B) Hydrogen sulfide gas
C) man made pollution
D) it really is rotten eggs in the water
E) the type of rocks that the water flows through
  • 11. Sometimes a glass of drinking water looks cloudy or milky - why does this happen?
A) water purification chemicals from the water treatment plant
B) tiny air bubbles
C) it is really soap stuck to the glass
D) it is the turbidity
E) pollution
  • 12. What percentage of your body is water?
A) up to 60%
B) up to 30%
C) up to 50%
D) up to 40%
E) up to 70%
  • 13. What is the longest river in the world?
A) Congo
B) Nile
C) Mississippi
D) Amazon
E) Rio Grande
  • 14. How much water does the average person use each day?
A) 20 to 40 gallons
B) 100 to 120 gallons
C) 60 to 80 gallons
D) 80 to 100 gallons
E) 40 to 60 gallons
  • 15. Water is the only substance that can exist as a liquid, gas and solid?
A) False
B) True
  • 16. Water covers about 70% of the entire earth.
A) True
B) False
  • 17. The water in the ocean is good to drink.
A) True
B) False
  • 18. Water is a(n) _________ resource.
A) extinct
B) abundant
C) renewable
D) unusable
  • 19. The water that dinosaurs drank _________.
A) is gone
B) is still in the water cycle
C) was salt water
D) was not the same kind of water that we drink today
  • 20. After rain falls upon the earth, it may _________.
A) stay underground for years
B) evaporate again very soon
C) all of the above
D) travel downhill until it reaches the ocean
  • 21. What are clouds?
A) masses of evaporated water
B) masses of condensed potato soup
C) masses of cotton balls
D) masses of condensed water formed by cooled water vapors
  • 22. If we use too much water, someday it will all be gone.
A) False
B) True
  • 23. Water vapor is a _________.
A) solid
B) gas
C) liquid
D) plasma
  • 24. Plants and trees contribute to the water cycle by evaporating through their leaves by _________.
A) infiltration
B) transpiration
C) condensation
D) evaporation
E) precipitation
  • 25. Two percent of our fresh water supply is unusable because it is frozen in _________.
A) tundra
B) glaciers
C) mountains
D) oceans
  • 26. When water hits land and is soaked into the ground, the water becomes _________.
A) vapor
B) groundwater
C) plant food
D) solid
  • 27. The water cycle is also called the hydrologic cycle.
A) False
B) True
  • 28. Water contracts (gets smaller) when it freezes.
A) False
B) True
  • 29. Water has a high surface tension (sticks to itself).
A) True
B) False
  • 30. Condensation is water coming out of the air.
A) True
B) False
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