Need of Water purifier

Q. One should not drink water directly from the tap. Why?

1. It is tasteless.
2. It contains harmful germs.
3. It can cause water borne disease.
4. It tastes salty.

Q. _____ can make the water safe for drinking.

1. Contaminating
2. Boiling
3. Cooling
4. Freezing

Q. Potable water is

1. contaminated water.
2. safe drinking water.
3. muddy water.
4. water that can be easily transported.

Q. We must purify tap water before using it for drinking purpose.

1. True
2. False

Q. In India, many people do not have access to safe drinking water. What appears safe is just clear water. So what is safe drinking water according to you?

1. Water which is odourless.
2. Water which is free from harmful micro-organisms.
3. Water which is free from dissolved impurities.
4. Water which is obtained from water purifiers.

Q.

Give reasons for the following

Potable water should contain small amount of essential minerals and salt.

Q. One should not drink water directly from the tap. Why?

1. It is tasteless.
2. It contains harmful germs.
3. It can cause water borne disease.
4. It tastes salty.

Q. We must purify tap water before using it for drinking purpose.

1. True
2. False