Revise GCSE Physics


Question:Why is the Ozone layer important? What does it do for us?

The Ozone layer blocks out almost all of the ultraviolet radiation from the sun.

If the ozone layer did not exist, then we could not survive out in the sunlight at all.

We would all die from sunburn very quickly. Or more slowly from skin cancers. Really!

Plant and animal life would also die, so we would be likely to starve even if we stayed inside all day.

Angry face

This diagram shows that the Ozone layer blocks the most harmful types of UV radiation and reduces the others.