Answer:
When wolves were removed from the habitat, the elk thrived, causing a population increase. more elk means an increase in the need for food. The leaves of an aspen tree make good food for elk causing over-grazing and soon, the "aspen trees will be eaten out."
Explanation:
Answer:
Devices used to convert thermal energy to mechanical energy are called heat engines.
The answer is heat engines.
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Its has to be A that's just plain common sense
It is a cough. When you cough, you release air from the lungs very quickly.
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Answer:
the answer is 3 and that's it
