Question : The release of which of the following in ponds and wells helps in controlling mosquitoes?
Option 1: Dogfish
Option 2: Crab
Option 3: Gambusia fish
Option 4: Snail
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Correct Answer: Gambusia fish
Solution : The correct option is Gambusia fish
Gambusia, often known as mosquitofish, is a tiny freshwater fish of the Poeciliidae family. It feeds on mosquito larve and pupae and has been part of mosquito control efforts in many areas.
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Question : Which of the following can be used for the biological control of mosquitoes?
Option 1: DDT
Option 2: Gambusia
Option 3: Oil
Option 4: Ointments
Question : Breeding of fish in specially constructed tanks and ponds is called_________.
Option 1: viticulture
Option 2: horticulture
Option 3: pisciculture
Option 4: sericulture
Question : Which of the following is an example of a terrestrial ecosystem?
Option 1: Ponds
Option 2: River
Option 3: Grasslands
Option 4: Oceans
Question : Which one out of the following helps in burning?
Option 1: Oxygen
Option 2: Carbon monoxide
Option 3: Nitrogen
Option 4: Carbon dioxide
Question : Directions: Which one of the given responses is the meaningful order of the following? 1. Brahmaputra 2. Atlantic 3. Chilka 4. Bay of Bengal
Option 1: 2, 4, 1, 3
Option 2: 2, 4, 3, 1
Option 3: 3, 1, 4, 2
Option 4: 3, 4, 2, 1
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