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प्रश्न
Which diseases are spread by flies and how?
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उत्तर
Following diseases are spread by flies; dysentery, cholera, typhoid, anthrax, etc. When a fly sits on contaminated material, harmful germs stick to its legs. When the same fly sits on food, the germs get transferred to the food. Thus, a fly spreads various diseases.
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संबंधित प्रश्न
What other diseases can be caused by mosquito bites?
Have you seen any poster like this put up anywhere?
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 |
Can any larvae be seen in the collected water?
In your group, make a poster with a message to keep the cooler, tank, drains and the area clean (wherever water collects). Put up your poster in and around your school.
Find out who is responsible for keeping the area around your school clean. Write a letter from your class, reporting your findings and suggestions. Find out to whom the letter should be written and to which office it should be sent.
How can you find out if someone has malaria?
Have you or anyone in your family ever needed to get a blood test? When and why?
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:
Are there plants growing on the side or in water? Find out their names. Draw some of these in your notebook.
