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प्रश्न
What will happen when oil is spread on the water?
उत्तर
The thin film of oil on water prevents oxygen supply to eggs and larvae of mosquitoes and thus they are killed.
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संबंधित प्रश्न
Do you know anyone who has had malaria?
What other diseases can be caused by mosquito bites?
What do you do in your house to protect yourself from mosquitoes? Also find out from your friends about what they do.
Look at the report of the blood test given here. Which words in the report help us to know that the person has malaria?
Why do you think pictures of a tank, cooler, and pits are shown on the poster?
Divide your class into two or three groups. Each group will go around to check one area in school or around it. It must carefully note if water has collected anywhere, and mark ✓ where it finds stagnant water.
| Pot | |
| Cooler | |
| Tank | |
| Any open space in the school ground | |
| Gutter | |
| Any other place |
Who is responsible for keeping these places clean?
What was found out by the blood test?
Is there a pond or river around your house or school? Go and look around and observe these things:
Where else have you seen algae?
Is there a pond or river around your house or school? Go and look around and observe these things:
Do you think these were planted by someone or did they grow on their own?
