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प्रश्न
‘There is a hole in the ozone layer’. What do you understand by this?
उत्तर
The depletion of the ozone layer takes place due to two reactions between ozone and chlorofluorocarbons which are released from an aerosol spray can in air conditioners and refrigerators. The depletion is particularly marked over the Antarctic region. This has resulted in the formation of a large area of thinned ozone layer called the ozone hole.
APPEARS IN
संबंधित प्रश्न
What is the function of ozone in the upper atmosphere?
Explain how, harmful ultraviolet radiations of sunlight are prevented from reaching the earth's surface.
How does ozone layer protect us from harmful effects in the environment?
The excessive exposure of humans to ultraviolet rays results in:
- damage to immune system
- damage to lungs
- skin cancer
- peptic ulcers
“Damage to the ozone layer is a cause of concern”. Justify this statement.
Explain ozone layer, its depletion and effects of ozone depletion.
Fill in the Blanks:
______ is manmade compounds that have been widely used as refrigerants and in spray propellants and foam blowing.
State the role of chlorofluorocarbons in ozone destruction or depletion [no equations required].
Select the correct answer from the following statement:
A chemical responsible for ozone depletion.
Global warming is a phenomenon related to ______.
