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Home Q & A Board Biology-Related Homework Help Environmental and Conservation Biology
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dracko dracko
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6 years ago
Which of the following is not a source of human-fixed nitrogen?
A) industrially produced fertilizers
B) cultivation of soybeans
C) combustion of fossil fuels
D) irrigation agriculture
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Biological Science, Canadian Edition

Biological Science, Canadian Edition


Edition: 2nd
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mastemamastema
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6 years ago
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dracko Author
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6 years ago
Just got PERFECT on my quiz
deathwing
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Yesterday
This calls for a celebration Person Raising Both Hands in Celebration
kater28
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2 hours ago
Correct Slight Smile TY
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