Answer:
Nitrogen is converted from atmospheric nitrogen (N2) into usable forms, such as NO2-, in a process known as fixation. ... This occurs in two steps: first, bacteria convert ammonia in to (nitrites) NO2-, and then other bacteria species convert it to NO3- (nitrate). Nitriates are a form of nitrogen that is usable by plants.
Explanation:
I'm pretty sure it's D. mostly because if they have different features then they might be a different species
If u still want an answer ask the question again(post it or in the comments) and I’ll help:)
Answer:
Exposition is a text that elaborates the writer‘s idea about the phenomenon surrounding. Its social function is to persuade the reader that the idea is important matter.
Explanation:
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