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Which fish can be used in biological control of mosquitoes/Larvicidal fish is

1. Eel
2. Cat Fish
3. Gambusia
4. Carp

Correct answer: Gambusia

Solution

Gambusia, especially Gambusia affinis, is widely used in biological control because it feeds on mosquito larvae in water bodies. The other options are not standard larvicidal fish for mosquito control.

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