Environmental Studies

Air Pollution

2,340 Questions

Air pollution questions address the sources of emissions, indoor air quality, and the formation of photochemical smog. You will explore the impact of particulate matter, acid rain, and urban pollutants. This is a highly relevant subject for environmental studies and general awareness tests.

Photochemical smogParticulate matter emissionsAcid rain causesIndoor air pollutionAmmonia emissions

Air Pollution Questions

Multiple choice water and air and their importance natural resources- air, water and land air around us air chemistry introduction to natural resources land

Which of these is the major air pollutant in cities like Delhi and Kolkata?

  1. Carbon monoxide

  2. Hydrocarbons

  3. Suspended particulate matter

  4. Oxides of nitrogen
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

According to the air pollution data, the suspended particulate level SPM level is highest in Delhi and Kolkata with 70% residents suffering from respiratory disorders and lung cancers due to high SPM levels in populated areas.

Multiple choice water and air and their importance natural resources- air, water and land air around us air chemistry introduction to natural resources land

Which of the following pollutants is not present in the vehicular exhaust emissions?

  1. Lead

  2. Ammonia

  3. Carbon monoxide

  4. Particulate matter
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Oxides of carbon like $CO$ and $CO _2$, oxides of nitrogen, oxides of sulphur, lead, all are present along with particulate matter in the vehicular exhaust gases, but ammonia is not formed in these vehicular emissions.


Option B is correct.

Multiple choice water and air and their importance natural resources- air, water and land air around us air chemistry introduction to natural resources land

Among the following, which will not help to reduce air pollution?

  1. Burn household rubbish in incinerators

  2. Use catalytic converters on motor vehicles

  3. Fix electric precipitators to factory chimneys

  4. Ban smoking in public places such as in offices
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Some measures indeed help to reduce the stress on the environment like a use of catalytic converters in vehicles and ESPs in chimneys reduce the air pollutants going in an atmosphere. Smoking is injurious to the health of smoker and passive smokers too who have to inhale the smoke in their lungs causing diseases. Incinerators produce a lot of ash and residue which is not suitable for burning so it increases the air pollution.

Multiple choice water and air and their importance natural resources- air, water and land air around us air chemistry introduction to natural resources land

The gasses released from vehicle exhausts are:
I. carbon monoxide
II. sulphur dioxide
III. oxides of nitrogen

  1. I and II only

  2. I and III only

  3. II and III only

  4. I, II and III
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Vehicular exhaust consist of oxides of carbon mainly carbon dioxide and carbon monoxide, sulphur dioxide and various oxides of nitrogen present in the burning fuel.

Multiple choice water and air and their importance natural resources- air, water and land air around us air chemistry introduction to natural resources land

Which among the given is not a natural source of air pollution?

  1. Automobile exhausts

  2. Vegetation decay

  3. Forest fire

  4. Volcanic eruptions
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
The automobile exhaustion is not a natural source of air pollution, it is man-made air pollution.
It is emitted as a result of the combustion of fuels such as natural gas, gasoline, petrol,bio-diesel etc. It discharges a large amount of $CO _2$(carbon dioxide), NO, CO, ozone etc.

Hence, the correct option is A.

Multiple choice biology waste generation and management disposal of waste safe disposal of waste solid waste and its management

Scrubbers were used 

  1. To make air free from microorganisms.

  2. To make air free from dust and gases.

  3. To make air free from solid particles.

  4. None of the above.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Scrubbers are air pollution control devices used to remove harmful gases and particulate matter (dust) from industrial exhaust streams. They work by spraying a liquid to capture the pollutants.

Multiple choice business organisation and correspondence environmental pollution and industries pollution and industrial pollution pollution and its type pollutions

Major pollution causing agent is

  1. Man

  2. Animals

  3. Hydrocarbon gases

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Pollution can be natural or anthropogenic. Natural pollution is pollution caused by natural sources e.g. volcanic eruptions, the release of methane gas by paddy fields and cattle, soil erosion, volcanic eruptions etc. However, the major pollution source in modern time is anthropogenic. Anthropogenic pollution is due to human activities like the burning of fossil fuels, deforestation, mining, sewage, industrial effluents, pesticides, agricultural fertilizers etc.

So, the correct answer is option A.

Multiple choice business organisation and correspondence environmental pollution and industries pollution and industrial pollution pollution and its type pollutions

In big cities, air pollution is mostly due to

  1. Burning of fossil fuels

  2. Thermal power plant

  3. Sewage
  4. $H _2S$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Major sources of atmospheric pollution are combustion of fossil fuels, mining and processing, chemical and cosmetic industries, welding, stone crushing, construction activity, textile industry etc. Most polluting gases are carbon monoxide, sulphur dioxides, unburnt hydrocarbons, nitrogen oxides and particulates. In big cities, the most important source of these pollutants is the combustion of fossil fuels in vehicles.

Multiple choice business organisation and correspondence environmental pollution and industries pollution and industrial pollution pollution and its type pollutions

Pollutants directly emanating from human activities are.

  1. Quantitative pollutants

  2. Qualitative pollutants

  3. Air pollutants

  4. Water pollutants
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The substances which are not normally present in the environment and are added by human beings including pesticides, insecticides, etc. are called Qualitative Pollutants.

So, the correct option is 'Qualitative Pollutants'.