Q. 7

Select from the following substances which have posed a threat to the environment:

Aerosols, consumers, bacteria, CFCs.

Answer :

Aerosol and CFCs are substances that posed a threat to the environment


Aerosol is a substance enclosed under pressure and released as a fine spray by means of a propellant gas. For example body deodorant, any of spray.


CFCs or Chlorofluorocarbons are a group of man-made compounds containing chlorine, fluorine and carbon. They are harmful and cause depletion of ozone layer.


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