What do you mean by sink? Give one example

CBSE Class 11 CBSE Class 11 Chemistry
,
1

(i) What do you mean by sink? Give one example.
(ii) What is the sink for hydrocarbons and why?

2

(i) Medium present in the environment that take up some amount of certain pollutants is called sink e.g., oceans act as siilk for ${{SO}{2}}$,
${{CO}{2}}$ and
${{NO}_{2}}$.
(ii) Chemical and photochemical reactions act as sink for hydrocarbons as these get decomposed in these reactions.