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Question
Write the full form of CFCs.
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Solution
CFCs: Chlorofluorocarbons
RELATED QUESTIONS
You have been selected to talk on 'ozone layer and its protection" in the school assembly on 'Environment Day.'
(a) Why should ozone layer be protected to save the environment?
(b) List any two ways that you would stress in your talk to bring in awareness amongst your fellow friends that would also help in protection of ozone layer as well as the environment.
Name the group of chemical compounds which damages the ozone layer.
What would be the effects on widening of ozone hole?
How are CFCs harmful?
Match the items in column I with the closely related ones in column II.
| Column l | Column lI | ||
| (i) | Chlorofluorocarbons (CFCs) | (a) | Global warming |
| (ii) | Fly ash | (b) | Biodegradable |
| (iii) | Cow dung | (c) | Nuclear radiation pollutant |
| (iv) | CO2 and methane | (d) | Acid rain |
| (v) | Sulphur dioxide | (e) | Industrial waste |
| (vi) | Iodine-131 | (f) | Ozone depletion |
State two effects of ozone depletion.
How is ozone formed in the upper atmosphere? State its importance. What is responsible for its depletion? Write one harmful effect of ozone depletion.
Fill in the Blanks:
The ______ is the layer of the atmosphere that contains the protective ozone layer
Give reason for the following:
Destruction of ozone layer is harmful for both humans and plants.
______ was signed in 1987 to control emission of ozone depleting substances.
