Sanitation and diseases (ch-6 science)
1. Give only two ways of disposing dirty waste water.
Ans - In cities pipes are used for carrying away the waste water. Sewage pipes are laid underground for this purpose.
2. How do the germs enter our body ?
Ans- Mostly through food and drink for example bread on garbage which has germs. The germs stick to their legs. When they sit on exposed food articles ,they carry the germs to the food.
3. Give three methods to check breeding of mosquitoes.
Ans- keep the drains clean.
All water tanks should be covered.
Keep the cooler dry when not in use.
4. What is dehydration?
Ans- Loss of excess of water and salts from the body causes dehydration.
5. What do you understand by ORS ?
Ans- ORS (Oral Rehydration Solution) should be given to a patient suffering from diarrhoea.
6. Give two preventive measures against diarrhoea.
Ans- Keep food properly covered.
Use boiled water for drinking.
7. How is compost formed ?
Ans- All the waste and Garbage must be put into a covered dustbin.The closed pit serves as a source of Rich manure after some time.This manure is called compost.
8. List the steps to prepare ORS.
Ans-Take one litre of boiled ( and cooled ) water in a container . Add one full tea spoon of common salt, one level tea spoon of sodium bicarbonate and eight heaped tea spoons of sugar to it.stir the mixture well. The ORS is ready.
Ans - In cities pipes are used for carrying away the waste water. Sewage pipes are laid underground for this purpose.
2. How do the germs enter our body ?
Ans- Mostly through food and drink for example bread on garbage which has germs. The germs stick to their legs. When they sit on exposed food articles ,they carry the germs to the food.
3. Give three methods to check breeding of mosquitoes.
Ans- keep the drains clean.
All water tanks should be covered.
Keep the cooler dry when not in use.
4. What is dehydration?
Ans- Loss of excess of water and salts from the body causes dehydration.
5. What do you understand by ORS ?
Ans- ORS (Oral Rehydration Solution) should be given to a patient suffering from diarrhoea.
6. Give two preventive measures against diarrhoea.
Ans- Keep food properly covered.
Use boiled water for drinking.
7. How is compost formed ?
Ans- All the waste and Garbage must be put into a covered dustbin.The closed pit serves as a source of Rich manure after some time.This manure is called compost.
8. List the steps to prepare ORS.
Ans-Take one litre of boiled ( and cooled ) water in a container . Add one full tea spoon of common salt, one level tea spoon of sodium bicarbonate and eight heaped tea spoons of sugar to it.stir the mixture well. The ORS is ready.
Comments
Post a Comment