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प्रश्न
The chemicals leading to the formation of ozone holes.
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उत्तर
Chloroflurocarbons/CFCs
APPEARS IN
संबंधित प्रश्न
Why is damage to the ozone layer a cause for concern? What steps are being taken to limit this damage?
The depletion of ozone layer in the upper atmosphere is mainly due to the emission of :
(a) unburnt hydrocarbons
(b) chlorofluorocarbons
(c) greenhouse gases
(d) ultraviolet radiations
Depletion of ozone in the ozone layer is a cause for our worry. Why?
Give scientific reasons:
Ozone present in the stratosphere is called as “good ozone”.
How are CFCs harmful?
Explain what is smog. Give its effects.
The depletion of the ozone layer is due to ______.
Very short answer type question
Where was the ozone hole discovered?
Gas A, found in the upper layers of the atmosphere, is a deadly poison but is essential for all living beings. The amount of this gas started declining sharply in the 1980s.
- Identify Gas A. How is it formed at higher levels of the atmosphere?
- Why is it essential for all living beings? State the cause for the depletion of this gas.
______ was signed in 1987 to control emission of ozone depleting substances.
