Q. Which of the following is a new bio-fertilizers?

  • (A) Green Blue Algae
  • (B) Nitrates
  • (C) Compost
  • (D) Farmyard manure
✅ Correct Answer: (A) Green Blue Algae

Published by Priyanka Tomar ⭐ 35.28K Points at 08-Feb-2021 02:21 pm in Geography

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