Introduction to Air Pollutants & Troposhpheric Pollutants

Q.

Differentiate between primary and secondary pollutants.

Q.

Carbon monoxide gas is more dangerous than carbon dioxide gas. Why?

Q. Which of the following has greater affinity for haemoglobin in blood?

1. $CO$
2. $O_2$
3. $C{O}_2$
4. All of these have similar affinity

Q. Greenhouse gas, $C{O}_2$ is confined to which layer of atmosphere ?

1. Only Troposphere
2. Only Stratosphere
3. Only Thermosphere
4. Both Troposphere and Stratosphere

Q.

Volcanoes and forest fires are natural sources of air pollution.

1. True
2. False

Q. Which of the following is the major air pollutant?

1. CO
2. O₂
3. CO₂
4. H₂

Q.

Spraying of DDT on crops causes pollution of

1. Soil and water

2. Air and soil

3. Air

4. Air, water and soil

Q.

Explain tropospheric pollution in 100 words.

Q. In blood, carboxyhaemoglobin is formed by

1. Inhalation of CO
2. Inhalation of $C{O}_2$
3. Inhalation of $S{O}_2$
4. Inhalation of Ozone

Q.

The type of pollution caused by spraying of DDT is

1. Air and soil

2. Air and water

3. Air

4. Air, water and soil

Q. Effects of undesirable changes in our surrounding that have harmful effects on plants, animals and human being is known as

1. Global warming
2. Environmental pollution
3. Green house effect
4. None of the above

Q. Which of these gases is an atmospheric pollutant?
1. carbon monoxide
2. nitrogen dioxide
3. sulfur dioxide

1. 3 only
2. 1, 2 and 3
3. 1 only
4. 2 only

Q. $CFC{l}_3$ is responsible for the decomposition of ozone layer. Which of the following reacts with ozone to form oxygen?

1. $C{l}_2$
2. $C{l}^{-}$
3. $F^{-}$
4. $C{l}^{\ast }$

Q.

Major pollutants produced during combustion of fossil fuels are_________

Q. Differentiate between primary pollutants and secondary pollutants?

Q. Greenhouse gas, $C{O}_2$ is confined to which layer of atmosphere?

Q.

Name two poisonous gases which can be prepared from chlorine gas.

Q. _________ the second layer of the atmosphere reaches 48 km above the earth's surface.

1. Troposphere
2. Stratosphere
3. Mesosphere
4. None of the above

Q. In which layer, most of the atmospheric air is present?

1. Troposphere
2. Stratosphere
3. Mesosphere
4. Thermosphere

Q. Which of the following statement is true about the ozone layer?

1. It is harmful because ozone is dangerous to living organism
2. It is beneficial because oxidation reaction can proceed faster in the presence of ozone.
3. It is beneficial because ozone cuts off the UV radiation of the sun.
4. It is harmful because ozone cuts out the important radiations of the sun which are vital for photosynthesis.

Q. What is so important about the troposphere?

1. It contains weather and the oxygen that we breath
2. Layer of water at or near Earths surface
3. All of the above
4. Contains ozone

Q.

The quality of air at various locations is monitored regularly by the government and other agencies? In what way can you use these data?

Q. In Antarctica ozone depletion is due to formation of the following compound.

1. Acrolein
2. Peroxy acetyl nitrate
3. Sulphurdioxide and sulphur trioxide
4. Chlorine nitrate

Q.

Ultraviolet rays is harmful for us

1. True
2. False

Q. Atmospheric pollution is generally studied as

1. Stratospheric pollution
2. Tropospheric pollution
3. Both (a) and (b)
4. None of the above

Q. Incomplete combustion of petrol or diesel oil in automobile engines can bes best detected by testing the fuel gases for the presence of-

1. carbon monoxide and water vapour
2. carbon monoxide
3. nitrogen dioxide
4. sulphur dioxide

Q.

Which of these is not caused by deforestation?

1. Global warming

2. Desertification

3. Reduction in groundwater

4. Storms

Q. Which of the following are the sources of $C{O}_2$ production?

1. Respiration
2. Decomposition of limestone
3. All of the above
4. Burning of fossil fuels

Q. The reduction in the amount of chlorofluorocarbons (CFCs) released into the air has the greatest positive effect upon

1. Water pollution
2. Noise pollution
3. Acid rain
4. Global warming

Q. Which one is not dangerous for life and atmosphere?

1. Biopollutants
2. Ozone layer
3. Nuclear blast
4. Deforestation