Pearson - 9Ee - Material Failures - CFCs

What is the primary function of the ozone layer?

• To absorb radio waves

• To absorb infrared light

• To absorb visible light

• To absorb UV light

What is the ozone layer made up of?

• Ozone and oxygen

• Ozone and carbon dioxide

• Oxygen and nitrogen

• Oxygen and carbon dioxide

What are the primary culprits in ozone layer breakdown?

• Nitrous oxide

• Chlorofluorocarbons

• Carbon dioxide

• Methane

What happens when CFCs are exposed to ultraviolet rays?

• They break down into substances that include chlorine

• They break down into oxygen

• They break down into water vapor

• They break down into nitrogen

Where has the ozone layer been impacted by pollution since the mid-1980s?

• Amazon

• Antarctic

• Sahara

• Arctic

What banned the production of ozone-depleting substances in 1989?

• The Kyoto Protocol

• The Paris Agreement

• The Montreal Protocol

• The Copenhagen Accord

What is the estimated time for chlorine levels to return to their natural state?

• 25 years

• 100 years

• 50 years

• 10 years

What will happen to the Antarctic ozone hole in about 50 years?

• It will disappear completely

• It will shrink to smaller than eight million square miles

• It will expand to cover the entire continent

• It will remain the same size

Where are about 90% of CFCs currently in the atmosphere emitted from?

• Natural processes in the atmosphere

• Volcanoes and geysers

• Developing countries in the southern hemisphere

• Industrialized countries in the northern hemisphere