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Which of the following statements is/are correct?
Option: 1
In paddy fields, cyanobacteria serve as an important biofertilizer.
Option: 2
Vermicompost consists of organic matter prepared by the action of earthworms on human or animal waste.
Option: 3
The important examples of cyanobacteria as biofertilisers are Anabaena, Nostoc and Oscillatoria
Option: 4
All of these
Answers (1)
All of the given statements are correct. Cyanobacteria, such as Anabaena, Nostoc and Oscillatoria are important biofertilizers in paddy fields. Vermicompost is organic matter produced by earthworms acting on human or animal waste. These statements are all true. Therefore, the correct option is Option 4.
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