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

How do scientists study air pollution?

  1. Study health records and compare them to pollution levels.

  2. Testing different types of pollution on people.

  3. Testing different types of pollution on plants.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Scientists use epidemiological studies to observe health trends in populations exposed to different levels of pollution. Testing harmful pollutants directly on humans is unethical.

Multiple choice

Which type of pollution is known as the “silent killer”?

  1. Nitrogen oxides

  2. Carbon monoxide

  3. Carbon dioxide

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

Carbon monoxide is often called the silent killer because it is undetectable by human senses and can cause death by suffocation before a person realizes they are being exposed.

Multiple choice chemistry planet earth acid deposition air and air pollution natural resources- air, water and land

The acid rain is caused when air polluted by large volume of :

  1. sulphur dioxide

  2. nitrogen dioxide

  3. carbon dioxide

  4. both A and B
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Acid rain is more properly called acidic deposition, which occurs in both wet and dry forms. Wet deposition usually exists in the form of rain, snow, or sleet but also may occur as fog, dew, or cloud water condensed on plants or the earth's surface. Dry deposition includes solid particles (aerosols) that fall to the earth's surface. Condensation of fog, dew, or cloud water is referred to as occult deposition.
The most common acidic substances are compounds containing hydrogen, sulphates, and nitrates. The chief source of these compounds is the combustion of fossil fuels such as coal, petroleum, and petroleum by-products, primarily gasoline.
Hence, acid rain is caused when air polluted by a large volume of sulphur dioxide.

Multiple choice chemistry planet earth acid deposition air and air pollution natural resources- air, water and land

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

  1. $1$ only
  2. $2$ only
  3. $3$ only
  4. $1, 2$ and $3$
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Solution:- (D) $1, \; 2$ and $3$

These all gases are atmospheric pollutants as all lead to air pollution.
coz  of
Nitrogen dioxide (NO2), sulfur dioxide (SO2), and carbon monoxide are important ambient air pollutants. High-intensity, confined space exposure to NO2 has caused catastrophic injury to humans, including death. Ambient NO2 exposure may increase the risk of respiratory tract infections through the pollutant's interaction with the immune system. Sulfur dioxide (SO2) contributes to respiratory symptoms in both healthy patients and those with underlying pulmonary disease. Controlled human exposure studies have demonstrated that experimental SO2 exposure causes changes in airway physiology, including increased airways resistance. Both acute and chronic exposure to carbon monoxide are associated with increased risk for adverse cardiopulmonary events, including death. However, studies have not demonstrated a clear dose-dependent health risk response to increasing amounts of these pollutants except at high concentrations. In addition, a number of studies examining the effects of ambient level exposure to NO2, SO2, and CO have failed to find associations with adverse health outcomes.

Multiple choice chemistry planet earth acid deposition air and air pollution natural resources- air, water and land

The pollutant in air responsible for acid rain is carbon monoxide.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Acid rain is caused by a chemical reaction that begins when compounds like sulphur dioxide and nitrogen oxides are released into the air. These substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants, known as acid rain. Sulphur dioxide and nitrogen oxides dissolve very easily in water and can be carried very far by the wind. As a result, the two compounds can travel long distances where they become part of the rain, sleet, snow, and fog that we experience on certain days.
Hence, The pollutant in air responsible for acid rain is sulphur dioxide and nitrogen oxides.