The release of which of the following into ponds and wells helps in controlling the mosquitoes ?

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Q: 323 (SSC/NA)
The release of which of the following into ponds and wells helps in controlling the mosquitoes ?

question_subject: 

Science

question_exam: 

SSC

stats: 

0,7,5,4,0,7,1

keywords: 

{'mosquitoes': [3, 0, 1, 1], 'ponds': [3, 0, 1, 1], 'dogfish': [1, 0, 0, 0], 'crab': [1, 0, 0, 0], 'gambusiafish': [2, 0, 0, 0], 'snail': [1, 0, 0, 0], 'wells': [2, 0, 1, 2]}

Option 1: Dogfish is not effective in controlling mosquitoes. Dogfish are a type of fish that live in saltwater environments and do not thrive in ponds or wells. They are not known to prey on mosquitoes.

Option 2: Crabs are not effective in controlling mosquitoes. While crabs are known to feed on a variety of organisms, their diet does not typically include mosquito larvae.

Option 3: Gambusia fish, also known as mosquito fish, are effective in controlling mosquitoes. These small freshwater fish have a voracious appetite for mosquito larvae and are often used in mosquito control programs.

Option 4: Snails do not contribute to mosquito control. They are not natural predators of mosquito larvae and do not have a significant impact on mosquito populations.

In conclusion, the correct answer to controlling mosquitoes is option 3: Gambusia fish, because they prey on mosquito larvae.