Answer:
Nitrogen fixing bacteria in the soil and within root nodules of some plants convert nitrogen gas on the atmosphere to ammonia.
Nitrifying- bacteria convert ammonia to nitrites.
Answer:
That'll be a "Long term change".
Goodluck with your test! :)
The Triassic follows the most important extinction occasion within the records of lifestyles, and so is a time whilst the survivors of that event spread and recolonized.The organisms of the Triassic can be considered to belong to certainly one of three businesses: holdovers from the Permo-Triassic extinction, new businesses which flourished in brief, and new agencies which went on to dominate the Mesozoic international.
Explanation:
As I think option B is the correct one.
