Advertisements
Advertisements
Question
How are CFCs harmful?
Solution
CFCs refer to chlorofluorocarbons. They are generally used as aerosol propellants, refrigerants, shaving foams, spraying agent in scents, etc. They are very harmful, as they are types of ODS (ozone-depleting substances) that lead to the destruction or depletion of the ozone layer of the atmosphere.
APPEARS IN
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.
Which radiations are absorbed by ozone layer?
Fill in the following blank with suitable word :
Ultraviolet rays can cause skin..............
Give scientific reasons:
Ozone present in the stratosphere is called as “good ozone”.
‘There is a hole in the ozone layer’. What do you understand by this?
The depletion of the ozone layer is due to ______.
State how CFCs break ozone in the stratosphere.
Give balanced equation for the following conversion [one or two steps].
Oxygen to ozone gas by photolysis.
Give reason for the following:
The formation of ozone involves a chemical reaction called photolysis.
Bad ozone is present in ______
