Environmentalmedium · Past Paper
How many years does it take for a CFC molecule to reach the stratosphere?
A1-2 days
B5-10 years
C100 years
D20-50 years
✓ Correct Answer: B — 5-10 years
CFCs are stable in the lower atmosphere and take several years to migrate up to the stratosphere.
Share this question
More from Environmental
- How much of the incoming solar radiation is typically reflected back into space by the Earth's atmosphere and surface combined (Earth's total albedo)?
- What is the effect of 'thermal pollution' on water bodies?
- Which of these is a secondary pollutant?
- What does 'GWP' stand for in climate science?
- Which substance is used as a standard for measuring Global Warming Potential (GWP)?