Effects of Water Pollution on River Ganga

Q.

When was Ganga action plan started?

Q. In the given image the fish died due to:

1. decrease in dissolved oxygen.
2. low pressure of water.
3. low water temperature.
4. increase in dissolved oxygen.

Q. The government project launched to save Ganga from contamination was:

1. Ganga Action Plan, 1985
2. Save Ganga, 1985
3. Save holy River, 1985
4. Ganga Recovery Plan, 1990

Q. There used to be plenty of dolphins living in the Ganges river but now, very few are left. What could be the possible reason(s) for this?

1. contamination in the river increase
2. harmful chemicals make the river water toxic
3. pollution degraded the health of the river
4. river current increases significantly

Q.

Ganga is contaminated because:

1. untreated sewage is dumped into it

2. food wastes and garbage is dumped

3. hot water from power plants is released in it

4. all of these

Q.

Untreated sewage contaminates Ganga because

1. it contains micro-organisms

2. it lowers the pressure of water

3. it increases the buoyancy of water

4. it makes the water dense

Q. Sewage water from residential areas and used water from industries must be disposed of directly into the rivers and lakes.

1. True
2. False

Q. The common water borne diseases are:

1. Diarrhoea
2. Jaundice
3. Typhoid
4. Cholera

Q.

Contamination of rivers like Ganga leads to:

1. impure water

2. death of aquatic life

3. acidic soil

4. all of these