Water Pollution

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

1. S-S soluble
2. S-L soluble
3. SL insoluble
4. LL insoluble

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

1. True
2. False

Differentiate between water pollution and water conservation.

1. Crops
2. Property and human life
3. Domestic animals
4. All of these

1. Air pollution
2. Water pollution
3. Noise pollution
4. Land pollution

1. Afforestation
2. Drought
3. Dumping of plastics
4. Melting of glaciers

Water polluted by various activities causes a number of water borne diseases. Which of the following is not a water borne disease?

1. Cholera

2. Typhoid

3. Asthma

4. Dysentry

1. solid-solid
2. solid-liquid
3. liquid-gas
4. solid-gas

Statement A: Human beings can exist without clean water.
Statement B: Water that we use should be clean.

1. Only statement A is true

2. Both statement A and statement B are true

3. Only statement B is true

4. Both statement A and statement B are false

The sources of water are:

1. surface and underground water

2. springs, rivers lakes

3. excavated dams and rock holes

4. all of these

1. Fluorosis
2. Anemia
3. Chlorosis
4. Bleeding

1. crops
2. human life
3. domestic animals
4. All of the above.

1. True
2. False

1. Multi-purpose projects generate electricity for our industries and our homes
2. Multi-purpose projects by regulating water flow help to control floods
3. Multi-purpose projects lead to large scale displacements and loss of livelihood
4. Multi-purpose projects bring water to those areas which suffer from water scarcity

1. True
2. False

The water which is obtained from the atmosphere by precipitation and contains fewer salts and suspended particles is known as ___ .

1. Compost

2. Fungicides

3. Sediments

4. Pesticides

Accumulation of sewerage leads to water pollution and spread of various diseases.

1. True

2. False

1. (1) and (2)
2. (1) and (3)
3. (4) only
4. all of the above

1. drought
2. monsoon winds
3. tropical rain
4. flood

Define Fresh water pollution.

What are the harmfull affects of shortage of rainfall?

1. True
2. False

check the errors-

1. Bangladesh has introduced the policy (a)__________

to protect its capital city Dhaka from (b)____________

recurring floods and high tides.

2. I saw an crowd of (a) ______

woman and children (b) ______

few metres from my house. (c) ______

1. flood
2. monsoon
3. drought
4. monsoon winds