Which of the following pair is of biofertilizers

Options :
  1. Azolla and blue green algae
  2. Nostoc and legumes
  3. Rhizobium and grasses
  4. Salmonella and E. coli
Answer and Explanation :-

Answer: Option 1

Explanation:

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Why do we mortals wonder if it is through 'human chaos' or through 'divine perfection' when the world guides us to some magical event? In either case, is not the result the same? Is the result not 'divine perfection?
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