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Activity 13.3 — Ozone Layer Depletion
NCERT Activity 13.3: Explore how the ozone layer protects Earth from UV radiation, and how CFCs cause ozone depletion through catalytic chain reactions.
How To Perform
1
Ozone Formation
See how UV radiation creates ozone (O₃) in the stratosphere.
2
UV Protection
Watch the ozone layer block harmful UV rays.
3
CFC Release
CFCs from aerosols and refrigerants enter the atmosphere.
4
Ozone Depletion
CFCs release chlorine that destroys ozone molecules.
5
UV Damage
With ozone depleted, harmful UV rays reach Earth.
6
Check Understanding
How do CFCs damage the ozone layer?