Air pollution

The video discusses various types of air pollution, including invisible pollutants from cars and factories that can cause health issues. It explains how some pollutants lead to acid rain, which has harmed ecosystems far from the pollution source. The video also covers the impact of chlorofluorocarbons (CFCs) on the ozone layer, leading to international bans and improvements. Despite some progress, air pollution remains a challenge due to industrial growth and increased vehicle use, necessitating continued efforts to find solutions.

What is one of the main causes of acid rain?

• Overfishing

• Excessive use of water

• Gases from cars and factories

• Deforestation

What was discovered about CFCs in the 1980s?

• They are beneficial for plant growth

• They created a hole in the ozone layer

• They contribute to global warming

• They are harmless to the environment

What is the primary function of the ozone layer?

• To provide oxygen

• To protect us from harmful solar radiation

• To support plant growth

• To regulate Earth's temperature

What has been the global response to the damage caused by CFCs?

• Banning CFCs in many countries

• Promoting the use of CFCs

• Increased production of CFCs

• Ignoring the issue

Despite improvements, what continues to contribute to air pollution?

• Industrial growth and more vehicles

• Reduction in fossil fuel use

• Fewer vehicles on the road

• Decreased industrial activity