According to the diagram below,humans are responsible for approximately _______ percent of the total amount of global nitrogen fixation on land.
A) 1
B) 10
C) 25
D) 50
E) 80

Question

According to the diagram below,humans are responsible for approximately _______ percent of the total amount of global nitrogen fixation on land. 
A) 1 
B) 10 
C) 25 
D) 50 
E) 80

Quizplus · Accepted Answer

The Answer of According to the diagram below,humans are responsible for approximately _______ percent of the total amount of global nitrogen fixation on land. 
A) 1 
B) 10 
C) 25 
D) 50 
E) 80

According to the Diagram Below,humans Are Responsible for Approximately _______