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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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
What two main substances do trees need to live?
trees absorb oxygen and water
trees absorb carbon dioxide and water
trees only need sunlight
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
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 harvest of world
the stomach of the world
the lungs of the world
Approximately how much of the original forests have disappeared?
What is the oldest living organism in North America (a rugged tree) called?
What is the science of dating through tree-ring growth called?
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