Multiple Choice
Classification.Respond to the following statements with reference to the four steps of the nitrogen cycles listed below.
a.nitrogen fixation
b.nitrification
c.denitrification
d.ammonification
-Argentine fire ants entered the United States in the
A) 1920s.
B) 1930s.
C) 1940s.
D) 1950s.
E) 1960s.
Correct Answer:

Verified
Correct Answer:
Verified
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