Nitrogen fixation by organisms requires conditions that are

Options :
  1. highly alkaline
  2. anaerobic
  3. saturated with sunlight
  4. free of water
Answer and Explanation :-

Answer: Option 2

Explanation:

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To me, all creativity is magic. Ideas start out in the empty void of your head - and they end up as a material thing, like a book you can hold in your hand. That is the magical process. It's an alchemical thing. Yes, we do get the gold out of it but that's not the most important thing. It's the work itself.
-Alan Moore