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Chapter 18 Review
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Chapter 18 Review

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  • 1. River channels are landforms that results from river and stream erosion.
  • 2.
  • 3. In the water cycle, the sun’s energy causes Evaporation.
  • 4. Lakes form in areas where the water table is above the Earth’s surface.
  • 5. Stream and river deposits include deltas and alluvial fans.
  • 6. During the water cycle energy is gained during evaporation.
    Energy Gained
  • 7. Loses Energy
    Gains energy
    In the water cycle water gains energy during evaporation and loses energy during condensation.
  • 8. In the water cycle condensation and precipitation occur in the atmosphere and evaporation occurs on the Earth’s surface.
  • 9. In a shower, many small streams of water combine to form larger
    streams, which eventually combine and flow down the drain. This is a simple model of the watershed.
  • 10. A natural spring occurs where the water table meets Earth’s surface.
  • 11. A rejuvenated river is formed wheretectonic activity raises the land.
  • 12.
  • 13. Only water in lakes, rivers, and shallow ground water is available for
    human use. Analyze Keiko’s pie chart and determine the percentage
    of Earth’s fresh water supply that is available for human use.
    A 12%
    B 13%
    C 1%
    D 24%
  • 14. Based on Keiko’s pie chart, which of the following is NOT a valid
    conclusion?
    F The majority of Earth’s fresh water is not available for human use.
    G Most useable fresh water comes from lakes and rivers.
    H More fresh water occurs as shallow ground water than as deep ground water.
    J Ice accounts for over three-fourths of Earth’s fresh water.
  • 15. A watershed is a region of landthat is drained by a river system.
  • 16. Which of the followingare examples of deposition:
    • The formation of an alluvial fan.
    • 17. A river that overflows its banks and spills out onto a flood plain.
    • 18. The formation of a delta.
  • Energy from the sun causes the evaporation of surface water during the water cycle.
  • 19. Stalactites and stalagmites are formedby deposition.