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barry barry
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Posts: 11630
11 years ago
Air and water pollution are directly responsible for the loss of some species. In their studies of these pollution effects, biologists have determined that ________ are especially sensitive to air pollution, and are now being used as an index of urban air quality.
A) songbirds
B) warblers
C) deciduous trees
D) evergreen trees
E) lichens
Textbook 
The Environment and You

The Environment and You


Edition: 2nd
Authors:
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2 Replies
Replies
wrote...
11 years ago
E) lichens
Biology - The only science where multiplication and division mean the same thing.
Answer accepted by topic starter
barry Authorbarry
wrote...
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Posts: 11630
11 years ago
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