Ozone layer blocks the radiations of wave length:
(1.) less than 3 × 10 − 7 m
(2.)equal to 3 × 10 − 7 m
(3.)more than 3 × 10 − 7 m
(4.)All of the above

Options

A. less than`3xx10^(-7)` m
B. equal to `3xx10^(-7)` m
C. more than `3xx10^(-7)` m
D. all of these

Answer

A