Question

Statement 1: Ozone layer protects us from ultraviolet light from the Sun.
Statement 2: Global warming is not due to retention of infrared light on the Earth.

• A. Both are true
• B. Both are false
• C. First statement is true, second statement is false
• D. Second statement is true, first statement is false

Answer 1

The correct option is C First statement is true, second statement is false

The ozone layer is formed in the stratosphere as a bluish gas by the action of sunlight. It shields the surface of the Earth from ultraviolet (UV) radiation from the Sun. This radiation is highly damaging to organisms, for example, it is known to cause skin cancer in human beings. Global warming is due to retention of infrared light which retains heat on earth. Ozone depletion is caused by chlorofluorocarbons.