Air Pollution & Its Effects MCQs With Answer
What is the primary cause of air pollution?
A) Natural disasters
B) Industrial emissions
C) Increased oxygen levels
D) Photosynthesis
Which gas is the main contributor to acid rain?
A) Carbon dioxide
B) Sulfur dioxide
C) Nitrogen gas
D) Hydrogen gas
Which of the following is a primary pollutant?
A) Ozone
B) Sulfur dioxide
C) Smog
D) Acid rain
Which air pollutant is responsible for global warming?
A) Oxygen
B) Carbon dioxide
C) Nitrogen
D) Helium
What is smog?
A) A type of weather phenomenon
B) A combination of fog and pollutants
C) A natural gas
D) A clean air component
Which industry is the largest contributor to air pollution?
A) Textile
B) Agriculture
C) Transportation
D) Fisheries
What is the main source of indoor air pollution?
A) Burning fossil fuels
B) Planting trees indoors
C) Drinking bottled water
D) Increased humidity
Which of the following is a greenhouse gas?
A) Oxygen
B) Methane
C) Nitrogen
D) Argon
Which pollutant is most harmful to the ozone layer?
A) Carbon monoxide
B) Chlorofluorocarbons (CFCs)
C) Nitrogen dioxide
D) Hydrogen sulfide
Which organ is most affected by air pollution?
A) Heart
B) Lungs
C) Liver
D) Kidneys
What is the major effect of carbon monoxide on human health?
A) Enhances breathing
B) Reduces oxygen transport in blood
C) Increases metabolism
D) Strengthens immunity
Which of the following is NOT a consequence of air pollution?
A) Respiratory diseases
B) Improved air quality
C) Climate change
D) Acid rain
Which gas is released in large amounts from vehicles and contributes to air pollution?
A) Nitrogen gas
B) Oxygen
C) Carbon monoxide
D) Helium
Which environmental problem is directly linked to excessive carbon dioxide emissions?
A) Ozone depletion
B) Global warming
C) Oil spills
D) Noise pollution
Which pollutant is the main cause of respiratory issues in urban areas?
A) Ozone
B) Particulate matter (PM2.5)
C) Sulfur
D) Helium
Which of the following is a natural source of air pollution?
A) Volcanic eruptions
B) Car emissions
C) Factory smoke
D) Burning fossil fuels
What is the primary effect of acid rain?
A) Improves soil fertility
B) Lowers water pH levels
C) Enhances plant growth
D) Reduces global warming
Which organization monitors global air pollution levels?
A) FIFA
B) World Health Organization (WHO)
C) International Monetary Fund (IMF)
D) NASA
What is the best way to reduce air pollution?
A) Increase fossil fuel consumption
B) Reduce emissions from industries and vehicles
C) Cut down more trees
D) Use more plastic
Which type of pollution affects visibility and causes haze?
A) Water pollution
B) Noise pollution
C) Air pollution
D) Light pollution
Which pollutant is commonly associated with respiratory diseases like asthma?
A) Carbon monoxide
B) Ozone
C) Nitrogen
D) Oxygen
How does deforestation contribute to air pollution?
A) Increases oxygen levels
B) Reduces carbon dioxide absorption
C) Improves air quality
D) Decreases global temperature
Which chemical contributes most to photochemical smog?
A) Nitrogen oxides
B) Chlorine
C) Sodium
D) Calcium
Which action can help reduce indoor air pollution?
A) Smoking indoors
B) Using air purifiers
C) Burning coal inside homes
D) Keeping windows closed at all times
Which pollutant is formed by incomplete combustion of fuels?
A) Carbon dioxide
B) Oxygen
C) Carbon monoxide
D) Ozone
How does air pollution affect climate?
A) Increases greenhouse gas levels
B) Reduces global warming
C) Increases oxygen concentration
D) Stabilizes temperatures
Which device is used to measure air pollution?
A) Barometer
B) Thermometer
C) Air quality monitor
D) Speedometer
What is the main cause of ozone layer depletion?
A) Overuse of water
B) Emission of CFCs
C) Increased carbon dioxide levels
D) Excessive oxygen production
Which gas is most responsible for acid rain formation?
A) Oxygen
B) Sulfur dioxide
C) Helium
D) Methane
Which type of energy production contributes the least to air pollution?
A) Coal-fired power plants
B) Wind energy
C) Oil refining
D) Diesel generators