Which of the following functions as a biofertilizer

Options :
  1. Azolla
  2. E. coli
  3. Spirogyra
  4. Cassia
Answer and Explanation :-

Answer: Option 1

Explanation:

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If you want to be a grocer, or a general, or a politician, or a judge, you will invariably become it that is your punishment. If you never know what you want to be, if you live what some might call the dynamic life but what I will call the artistic life, if each day you are unsure of who you are and what you know you will never become anything, and that is your reward.
-Oscar Wilde