Advertisements
Advertisements
प्रश्न
Give reason for the following.
Mosquitoes can be controlled by preventing stagnation of water though they do not live in water. Why?
Advertisements
उत्तर
Though mosquitoes, live on land, water is their breeding ground their larvae grow in water. Water stagnation is the collecting of water in a small area, without any activity. Mosquitoes lay eggs on such a surface.
If water stagnation is prevented, their larvae cannot survive, thus reducing the mosquito population.
APPEARS IN
संबंधित प्रश्न
Earlier people cooked their food in pressure cooker. __________
We can preserve pickle by______.
Which one can be eaten as raw food?
Grains are preserved by
Vinegar is added as a preservative for pickles.
Name any two naturally occuring toxic substances in food.
Why is the oil used as a preservative for pickles?
The addition of oil in pickles prevents the contact of air with the pickle.
Explain why this happens and suggest possible remedies.
The wheat that was bought is a bit moist.
Explain why this happens and suggest possible remedies.
Cut fruits have turned black.
