What year was the significant thinning of the ozone layer over Antarctica first discovered?

• 2000

• 1988

• 1990

• 1985

What does the ozone layer protect us from?

• Infrared radiation

• Gamma rays

• Ultraviolet light

• X-rays

What international treaty was established to limit the production of chlorocarbons?

• Geneva Convention

• Montreal Protocol

• Paris Agreement

• Kyoto Protocol

What was the goal of the Montreal Protocol?

• To increase global temperatures

• To promote renewable energy

• To reduce carbon emissions

• To decrease the use of chlorocarbons

In what year was the original Clean Air Act enacted?

• 1990

• 1970

• 2000

• 1980

What does the EPA regulate under the Clean Air Act?

• Water pollution

• Air quality

• Land use

• Noise pollution

Which air pollutant is primarily sourced from motor vehicles?

• Nitrogen oxides

• Particulate matter

• Carbon monoxide

• Sulfur dioxide

What is a major source of particulate matter?

• Industrial activities

• Wind turbines

• Solar panels

• Hydroelectric plants

Which country is mentioned as having significant air pollution issues due to industrialization?

• Germany

• Brazil

• India

• Canada

What is a common challenge in developing countries regarding air pollution?

• Over-reliance on renewable resources

• Poorly regulated industries

• Highly regulated industries

• Excessive use of electric vehicles