Answer:
Nitrogen-fixing bacteria is capable pf transforming nitrogen present in the atmosphere into fixed nitrogen i.e. usable for plants.
hope it helps!
 
        
                    
             
        
        
        
It was exposed to oxygen. This is called oxidation and it's a chemical reaction, meaning it can't be reversed. 
        
             
        
        
        
The correct answer to your following question would be letter, C, The bent structure of a water molecule. I hope this helps you out let me know.
        
             
        
        
        
Answer:
gravity
Explanation:
Gravity is the cause of glacier motion; the ice slowly flows and changes in response to gravity. A glacier molds itself to the land and also molds the land as it creeps down the valley. Many glaciers slide on their beds, which enables them to move faster.
 
        
                    
             
        
        
        
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Explanation: