• 1. 
    About 20 percent of the "greenhouse effect" is the result of deforestation.

  • TRUE
  • FALSE
  • 2. 
    The largest tree leaves can exceed 10 meters in length.

  • TRUE
  • FALSE
  • 3. 
    Trees can grow only below altitudes of 2,000 meters.

  • TRUE
  • FALSE
  • 4. 
    A reed is a kind of tree.

  • TRUE
  • FALSE
  • 5. 
    Elms produce many leaves each year.

  • TRUE
  • FALSE
  • 6. 
    Most redwood trees are very old.

  • TRUE
  • FALSE
  • 7. 
    You can tell a tree’s age by counting its growth rings.

  • TRUE
  • FALSE
  • 8. 
    The mahogany tree is native to India.

  • TRUE
  • FALSE
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