Ozone is a gas in the atmosphere that protects everything living on the Earth from harmful ultraviolet (UV) rays from the Sun. because without the layer of ozone in the atmosphere, it would be very difficult for anything to survive on the surface.zone is a gas in the atmosphere that protects everything living on the Earth from harmful ultraviolet (UV) rays from the Sun.
Ozone is formed from dioxygen by the action of ultraviolet light and also atmospheric electrical discharges, and is present in low concentrations throughout the Earth's atmosphere (stratosphere). In total, ozone makes up only 6993600000000000000♠0.6 ppm of the atmosphere.  Most atmospheric ozone is concentrated in a layer in the stratosphere, about 15–30 kilometers above the Earth's surface. Ozone is a molecule containing three oxygen atoms. It is blue in color and has a strong odor. Normal oxygen, which we breathe, has two oxygen atoms and is colorless and odorless. About 90% of the planet's ozone is in the ozone layer. The layer of the Earth's atmosphere that surrounds us is called the troposphere. The stratosphere, the next higher layer, extends about 10–5 How ozone protects us Ozone is a gas in the atmosphere that protects everything living on the Earth from harmful ultraviolet (UV) rays from the Sun. Without the layer of ozone in the atmosphere, it would be very difficult for anything to survive on the surface. Where is ozone found in the atmosphere? Ozone is mainly found in two regions of the Earth's atmosphere. Most ozone (about 90%) resides in a layer that begins between 6 and 10 miles (10 and 17 kilometers) above the Earth's surface and extends up to about 30 miles (50 kilometers). This region of the atmosphere is called the stratosphere. The ozone layer is a concentration of ozone molecules in the stratosphere. About 90% of the planet's ozone is in the ozone layer. The layer of the Earth's atmosphere that surrounds us is called the troposphere. The stratosphere, the next higher layer, extends about 10–50 kilometers above the Earth's surface. Stratospheric ozone is a naturally occurring gas that filters the sun's ultraviolet (UV) radiation The ozone layer contains less than 10 parts per million of ozone, while the average ozone concentration in Earth's atmosphere as a whole is only about 0.3 parts per million. The ozone layer is mainly found in the lower portion of the stratosphere, from approximately 20 to 30 kilometres (12 to 19 mi) above Earth, though the thickness varies seasonally and geographically. The ozone layer was discovered in 1913 by the French physicists Charles Fabry and Henri Buisson. Ozone is a natural gas that is found in two different layers of the atmosphere. One layer, called the troposphere, is at the Earth's surface where we live. Ozone in the troposphere is bad because it dirties the air and helps make smog, which is unhealthful to breathe. The Earth is wrapped in a blanket of air called the 'atmosphere', which is made up of several layers. About 19-30 kilometres above the Earth is a layer of gas called ozone, which is a form of oxygen. Ozone is produced naturally in Ozone is a natural gas that is found in two different layers of the atmosphere. In the layer around the Earth's surface, otherwise known as the troposphere, bad ozone dirties the air and helps make smog. The Earth is wrapped in a blanket of air called the 'atmosphere', which is made up of several layers. About 19-30 kilometres above the Earth is a layer of gas called ozone, which is a form of oxygen. Ozone is produced naturally in Ozone is very rare in our atmosphere, averaging about three molecules of ozone for every 10 million air molecules. In spite of this small amount, ozone plays a vital role in the atmosphere. In the information below, we present the basics about this important component of the Earth's atmosphere. Most ozone (about 90%) resides in a layer that begins between 6 and 10 miles (10 and 17 kilometers) above the Earth's surface and extends up to about 30 miles (50 kilometers). This region of the atmosphere is called the stratosphere.
https://en.wikipedia.org/wiki/Ozone http://www.factmonster.com/ipka/A0800624.html http://earth.rice.edu/mtpe/atmo/atmosphere/topics/ozone/o3.html http://www.ozonelayer.noaa.gov/science/basics.htm http://www.factmonster.com/ipka/A0800624.html https://en.wikipedia.org/wiki/Ozone_layer http://envis.tropmet.res.in/kidscorner/ozone.htm http://envis.tropmet.res.in/kidscorner/ozone.htm http://www.ozonelayer.noaa.gov/science/basics.htm
why ozone layer is important atmospheric gas