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Which of the following genus of bacteria converts ammonium ions to nitrates?
a) Azotobacter                    
b) Nitrobacter
c) Rhizobium                       
d) Nitrosomonas

d

Which of the following genus of bacteria converts ammonium ions to nitrates?
a) Azotobacter                    
b) Nitrobacter
c) Rhizobium                       
d) Nitrosomonas

d

Which of the following genus of bacteria converts nitrates to nitrites?
a) Azotobacter                    
b) Nitrobacter
c) Rhizobium                       
d) Nitrosomonas

b

Which of the following genus of bacteria converts nitrates into primarily nitrogen gas but also nitrou oxide gas?
a) Azotobacter                    
b) Nitrobacter
c) Rhizobium                       
d) Pseudomonas

d

The conversion of organic form of nitrogen into inorganic nitrogen is called
a) Ammonification           
b) nitrification
c) Denitrification 
d) nitrogen fixation

a

The association in which an organism gets advantage and the other suffers is called……..
a) mutualism                       
b) commensalism
c) parasitism                       
d) symbiosis

c

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