Mystery in the Ozone Layer Quiz

What is the primary function of the ozone layer?

• To support plant growth

• To provide oxygen for breathing

• To absorb harmful UV rays from the sun

• To regulate Earth's temperature

What was the main purpose of the Montreal Protocol?

• To ban ozone-depleting substances

• To reduce global warming

• To protect endangered species

• To promote renewable energy

What unexpected discovery did NASA researchers make about CCl4?

• It is no longer present in the atmosphere

• It is more abundant than expected

• It is a natural compound

• It is not harmful to the ozone layer

What is one possible reason for the discrepancy in CCl4 levels?

• Changes in ocean currents

• Unidentified industrial leakages

• Increased solar activity

• Natural volcanic emissions

What does the research suggest about the lifespan of CCl4 in the atmosphere?

• It is shorter than previously thought

• It is longer than previously thought

• It remains unchanged

• It is not measurable