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The Importance of Trees

The following questions on Trees covers, broadly, how they live, their importance to our Environment and some interesting facts. 10 Questions.

 
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prakasan
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1

Trees may help reduce the effects of global warming by:

  • increasing oxygen concentration in the atmosphere
  • reducing carbon dioxide concentrations in the atmosphere
  • losing their leaves in Winter

2

What two main substances do trees need to live?

  • trees absorb oxygen and water
  • trees absorb carbon dioxide and water
  • trees only need sunlight

3

The amount of carbon dioxide a tree may remove from the atmosphere to gain one pound is:

  • about 1.5 pounds
  • about 3 pounds
  • about 0.5 pounds

4

What is one of the byproducts of photosynthesis?

  • shade
  • oxygen
  • compost

5

The water vapor given off by a tree becomes a critical part of Earth's ______________.

  • hydrogen cycle
  • hydrologic cycle
  • carbolic cycle

6

What element is used from the absorbed water to make the chemical energy for a tree?

  • nutrients
  • hydrogen
  • oxygen

7

Trees are sometimes called...?

  • the harvest of world
  • the stomach of the world
  • the lungs of the world

8

Approximately how much of the original forests have disappeared?

  • quarter
  • half
  • three quarters

9

What is the oldest living organism in North America (a rugged tree) called?

  • Bristlecone
  • Gingobiloba
  • Douglas fire

10

What is the science of dating through tree-ring growth called?

  • Eldology
  • Dendrochronology
  • Arborology

 

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