Question

What prevents most of the ultraviolet radiation from reaching the earth?

Answer 1

A layer of ozone in the upper atmosphere absorbs UV radiation and prevents most of it from reaching the Earth. ... This means that more ultraviolet radiation can pass through the atmosphere to the Earth's surface, particularly at the poles and nearby regions during certain times of the year.

Answer 2

A layer of ozone in the upper at absorbed Ultraviolet radiation and prevent most of it from reaching the Earth. This means that more ultraviolet rays can pass through the atmosphere to the earth surface particularly at the poles and nearby regions.