Table of Contents
Choose the correct options for the following questions.
Unit of ozone is:
Difficulty: Easy
A:
Debye
B:
Dobson
C:
Esu
D:
Coulomb
Main cause of reducing map is:
Difficulty: Easy
A:
Combustion of coal
B:
NO and $NO_{2}$
C:
Un-burnt hydrocarbons
D:
All of these
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