Quiz on Atmosphere and Pollution

1. Which of the following is a major health effect of smog?

• 1. Skin tanning

• 1. Respiratory problems like asthma and bronchitis

• 1. Stronger immune system

• 1. Increased bone density

Which gas is present in the atmosphere at approximately 21%?

• Nitrogen

• Oxygen

• Carbon dioxide

• Argon

Water vapour in the atmosphere plays a major role in:

• Acid rain formation

• The greenhouse effect

• Ozone layer depletion

• Smog formation

Acid rain causes damage to aquatic ecosystems mainly because:

• It raises the temperature of water bodies

• It lowers the pH of lakes and rivers

• It removes oxygen from the water

• It increases salt levels in freshwater

The main function of the ozone layer is to absorb:

• Visible light

• Infrared radiation

• Ultraviolet radiation

• X-rays

Which of the following gases is a trace gas in the atmosphere?

• Oxygen

• Nitrogen

• Argon

• Carbon dioxide

Which of the following pollutants is directly responsible for photochemical smog?

• Chlorofluorocarbons

• Volatile organic compounds and nitrogen oxides

• Carbon monoxide

• Methane

A temperature inversion occurs when:

• Warm air rises above cold air

• Cold air is trapped beneath warm air

• Air pressure decreases with altitude

• Wind speeds increase in the troposphere

Which chemical equation correctly represents part of the acid rain process?

• SO₂ + H₂O → H₂SO₃

• CO₂ + H₂O → H₂CO₃

• NO₂ + H₂O → HNO₃

• All of the above

Which greenhouse gas has the highest global warming potential (GWP)?

• Carbon dioxide

• Water vapour

• Methane

• Nitrous oxide