Question

Which of the following statements is/are correct?

• A. In paddy fields, cyanobacteria serve as an important biofertiliser
• B. Vermicompost consists of organic matter prepared by the action of earthworms on human or animal waste
• C. The important examples of cyanobacteria as biofertilisers are Anabaena, Nostoc and Oscillatona
• D. All of these

Answer 1

Answer: (D)

Correct answer is (d) All of these