Smog

Q.

What is smog? How is smog formed? What are its harmful effects?

Q. Smog is a mixture of:

1. Smoke and Fog
2. Smoke and dust particles
3. Dust particles and water droplets
4. Fog and water droplets

Q.

A lot of dry leaves are collected in a school garden and are burnt every day. Do you think that it is right to do so? If not, what should be done to dispose off the dry leaves?

Q. Give full forms of CFC and SPM.

Q.

Question 22
Match the items of Column A with those of Column B.
$\begin{array}{cc}\text{Column A}& \text{Column B}\\ \text{(a)Sulphur dioxide}& \text{(i)Damage ozone layer}\\ \text{(b)Carbon dioxide}& \text{(ii) Reduces oxygen carrying-capacity of blood}\\ \text{(c)Carbon monoxide}& \text{(iii)Acid rain}\\ \text{(d)Chlorfluorocarbons}& \text{(iv)Greenhouse gas}\end{array}$

Q.

Mention respiratory diseases caused due to air pollution?

Q.

What are the components of air?

Q. What major harm is done to human beings by air pollution?

Q. Environmental pollution can be controlled by:

1. spraying insecticides and pesticides
2. open burning of tree stumps
3. treating factory wastes before disposing them
4. disposing hot water from power stations into the sea

Q.

Give the harmful effects of air pollutants on the health of human beings.

Q. Which of the following is not a direct cause of air pollution?

1. Thinning of the ozone layer
2. Increase in the number of diabetic patients
3. Destruction of habitats
4. Global warming

Q. Which gas reduces the oxygen-carrying capacity of the blood?

1. $S{O}_2$
2. $N{O}_2$
3. $CO$
4. $C{O}_2$

Q.

______ is the combination of smoke and fog.

1. Cloud

2. Mist

3. Smog

4. Flyash

Q. Smog is a mixture of smoke and fog.

1. True
2. False

Q. Smog is the mixture of ________.

1. smoke and water
2. smoke and fog
3. smoke and oxygen
4. water and fog

Q. Smog is the mixture of ________.

1. smoke and water
2. smoke and fog
3. water and fog
4. smoke and oxygen

Q. Which of the following is not an effect of smog in humans?

1. Asthma
2. Cough
3. Wheezing
4. Malaria

Q.

Smog is the air pollutant which:

1. can neither cause asthama nor reduce visibility.
2. causes asthma.
3. reduces visibility.
4. causes asthma and reduces visibility.

Q. What is the correct combination that makes up smog?

1. Dust and gases
2. Fog and dust
3. Smoke and dust
4. Smoke and fog

Q.

In November 2016, the national capital city, New Delhi had faced a severe increase in air pollution levels which continued for more than 2 weeks. Identify the major contributor(s) to this situation from the below-given options.

1. True

2. False

3. Burning of stubble (crop residue) in the nearby farming villages.
4. Cigarette smoking

Q. The smog is essentially caused by the presence of:

1. Oxygen and ozone
2. Ozone and sulphur
3. Oxides of Sulphur and nitrogen
4. Oxygen and nitrogen