Contaminación del aire

The video discusses various types of air pollution, including fumes from cars and factories, and their health impacts. It explains acid rain, its historical effects in Scandinavia, and legislative measures to reduce it. The video also covers the impact of chlorofluorocarbons (CFCs) on the ozone layer, the resulting hole, and the global efforts to ban CFCs, leading to recovery. Despite improvements, air pollution remains a challenge due to industrial growth and increased vehicle use, necessitating ongoing efforts to find solutions.

What environmental issue was caused by air pollutants dissolving in water vapor?

• Smog formation

• Ozone depletion

• Acid rain

• Global warming

Which region experienced significant fish deaths due to acid rain in the 1950s?

• Scandinavia

• North America

• Australia

• Asia

What chemical compounds were found to have created a hole in the ozone layer?

• Nitrous oxide

• Carbon dioxide

• Chlorofluorocarbons (CFCs)

• Methane

What protective function does the ozone layer serve?

• It prevents acid rain.

• It reduces global warming.

• It absorbs carbon dioxide.

• It blocks harmful UV radiation from the Sun.

Despite improvements in some areas, what continues to contribute to air pollution?

• Overfishing

• Increased industrial activity and vehicle use

• Nuclear energy

• Deforestation