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ceybe ceybe
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6 years ago
Considering the global nitrogen cycle, how are humans altering this cycle?
A) industrial nitrogen fixation
B) nitrogen lost to the atmosphere
C) reduction of nitrogen available to terrestrial ecosystems
D) reduction of nitrogen fixation by bacteria
Textbook 
Biological Science, Canadian Edition

Biological Science, Canadian Edition


Edition: 2nd
Authors:
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wrote...
6 years ago
A
ceybe Author
wrote...
6 years ago
Thanks for answering
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