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Which one of the following is not used in organic farming?

1. Glomus
2. Earthworm
3. Oscillatoria
4. Snail

Correct answer: Snail

Solution

Glomus is a mycorrhizal fungus used to improve nutrient uptake, earthworms help decompose organic matter and enrich soil, and Oscillatoria can contribute nitrogen fixation. Snails are not typically used as a beneficial input in organic farming.

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