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The Importance of Trees
Angiosperms and Gymnosperms
"The following questions on Trees covers, broadly, how they live, their importance to our Environment and some interesting facts."
15 Points Per Correct Answer - No time limit
Trees may help reduce the effects of global warming by:
increasing oxygen concentration in the atmosphere
losing their leaves in Winter
providing shade from UV rays
reducing carbon dioxide concentrations in the atmosphere
What two main substances do trees need to live?
trees only need sunlight
trees absorb oxygen and water
trees absorb carbon dioxide and water
trees absorb nutrients and water from the soil
The amount of carbon dioxide a tree may remove from the atmosphere to gain one pound is:
about 3 pounds
about 0.5 pounds
about 1.5 pounds
about 10 pounds
What is one of the byproducts of photosynthesis?
The water vapor given off by a tree becomes a critical part of Earth's ______________.
What element is used from the absorbed water to make the chemical energy for a tree?
Trees are sometimes called ...?
the stomach of the world
the lungs of the world
the shady part of the world
the harvest of the world
Approximately how much of the original forests have disappeared?
The oldest living organism in North America happens to be a rugged tree. This tree is the?
What is the science of dating through tree-ring growth called?
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Compiled Aug 23 12