Nitrogen is taken up by plant roots in the form of? by Sunday | Jun 12 | Agricultural Science WAEC | 0 comments A. nitrate ion B. nitrite ion C. nitric acid D. nitrogen gas Correct Answer: Option A – nitrate ion Users Also Read These:If the cross of a red-flowered plant with a white…If urea fertilizer contains 46% nitrogen. calculate…If the cross of a red-flowered plant with a…The soil water that is readily available for…If the percentage of nitrogen in ammonium sulphate…