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