Definition of Ozone layer:
Belt of ozone gas 15 to 50 kilometers above the earths surface where ozone is present in concentrations of a few parts per million. This layer blocks (absorbs) ultraviolet part of the solar radiation (which causes skin cancer) from reaching the earths surface. Ozone depleting substances thin this layer resulting in large areas (called ozone Holes) having half or less ozone than normal to appear. In 1985, the UK researchers in Antarctica discovered thinning of ozone layer has been occurring since 1979. By 1988 it was established that the layer was thinning fast over the entire globe. Also called ozone shield.
A layer in the earths stratosphere at an altitude of about 6.2 miles (10 km) containing a high concentration of ozone, which absorbs most of the ultraviolet radiation reaching the earth from the sun.
How to use Ozone layer in a sentence?
- Some Republicans claim that the ozone layer has not been depleted by mans actions but I think that we are really polluting our atmosphere.
- With the number of vehicles on the road our ozone layer cant help but suffer some consequences from all the emissions produced.
- One of the more important reasons that people need to be environmentally friendly is to help protect the ozone layer because it is what protects the earth.
- In the absence of the ozone layer harmful ultraviolet radiation is able to reach the surface of the Earth in higher doses.
Meaning of Ozone layer & Ozone layer Definition