Smog

The video explains smog as a type of pollution formed by the reaction of air pollutants under sunlight. It highlights the sources of these pollutants, such as traffic and factories, and discusses the health risks associated with smog, including respiratory issues and asthma. The video also examines smog problems in cities like Seoul, Cairo, and Mexico City, and describes measures taken in Mexico City to reduce smog, such as vehicle restrictions and promoting public transport.

What is smog primarily composed of?

• A mixture of gases

• Solid particles

• Pure oxygen

• Water vapor and dust

Which of the following is a major source of air pollutants in cities?

• Oceans

• Mountains

• Traffic

• Forests

What health issues can smog cause?

• Stronger immune system

• Improved vision

• Enhanced lung capacity

• Breathing problems and asthma

Which city has implemented vehicle usage restrictions to combat smog?

• New York

• Mexico City

• Tokyo

• London

What is one measure Mexico City has taken to reduce air pollution?

• Increasing the number of cars

• Encouraging the use of coal

• Banning public transport

• Promoting the use of clean engines