Figure 54.9
-Considering the global nitrogen cycle depicted in the figure above,what is the limiting portion of the cycle for plants?
A)industrial nitrogen fixation
B)nitrogen lost to the atmosphere
C)internal nitrogen cycling in the oceans
D)nitrogen fixation by bacteria

Question

Figure 54.9 
-Considering the global nitrogen cycle depicted in the figure above,what is the limiting portion of the cycle for plants?
A)industrial nitrogen fixation 
B)nitrogen lost to the atmosphere 
C)internal nitrogen cycling in the oceans 
D)nitrogen fixation by bacteria

Quizplus · Accepted Answer

Plants are dependent on nitrogen fixation by bacteria to obtain usable forms of nitrogen, such as ammonium (NH4+) and nitrate (NO3-), which are necessary for their growth and survival. Thus, the limiting portion of the global nitrogen cycle for plants is nitrogen fixation by bacteria.

Figure 54.9 -Considering the Global Nitrogen Cycle Depicted in the Figure Above,what