Plants use Nitrogen in the form of? by Sunday | Apr 23 | Biology NECO | 0 comments A. ammonia B. ammonium C. nitrates D. nitrites E. urea Correct Answer: Option C – nitrates Users Also Read These:If the percentage of nitrogen in ammonium sulphate…In the nitrogen cycle, the nitrates in the soil are…Nitrogen is taken up by plant roots in the form of?Nitrogen is important in plants because it is mainly…Nitrogen is made available to plants in the form of…