問題詳情
8. Nitrogen fixation is a process that _______.
(A) recycles nitrogen compounds from dead and decaying materials
(B) converts ammonia to nitrate
(C) converts nitrogen gas into ammonia
(D) releases nitrate from amino acids
(E) B and C
參考答案
答案：[無官方正解]
難度：計算中-1
書單：沒有書單，新增