Understanding the Ozone Layer and CFCs

What was the primary reason for the development of CFCs in the 1920s?

• To find a safer alternative for refrigeration chemicals

• To improve the efficiency of air conditioners

• To develop a new type of aerosol spray

• To create a new type of fuel

What happens to CFCs when they reach the upper atmosphere?

• They transform into water vapor

• They react with UV radiation, releasing chlorine

• They become harmless and dissipate

• They are absorbed by clouds

What was the global treaty called that aimed to reduce CFC emissions?

• Geneva Convention

• Montreal Protocol

• Paris Agreement

• Kyoto Protocol

How do CFCs contribute to global warming?

• By reflecting sunlight back into space

• By increasing cloud cover

• By trapping heat in the atmosphere

• By directly increasing the Earth's temperature

What is the main challenge in fully recovering the ozone layer?

• Increased volcanic activity

• New chemicals not covered by existing treaties

• Lack of international cooperation

• Deforestation