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Question
The following picture depicts a certain phenomenon
- Name the phenomenon and explain it.
- Enlist the sources that are responsible for the above mentioned phenomenon.
- List out the effects of the above phenomenon on humans.
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Solution
- The above phenomenon is the depletion of the Ozone Layer. Ozone layer depletion is a phenomenon in which certain gaseous compounds, such as chlorofluorocarbons (CFCs), break down into chlorine atoms, which in turn break down ozone (O3) into oxygen (O2) and O.
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- Use of CFCs in fire extinguishers and aerosol sprayers.
- Use of CFCs in refrigerators.
- Packing material styrofoam.
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- Depletion of the ozone layer can affect global rainfall, cause ecological disruptions, and reduce world food supplies.
- The depletion of the ozone layer allows UV radiation to reach the planet. UV radiation can cause skin cancer and harm to the eyes and immune system.
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