Ozone is a gas with molecules
that are made out of 3 oxygen
atoms. The Oxygen that we
breath has 2. The Ozone layer
protects us from the suns radiation.
It is in the Stratosphere. There is
a holes in the Ozone layer over the
poles. The hole was made by Ozone
destroying chemicals. These chemicals
were in house items. The chemicals
take 2 or 3 years to get to the Stratosphere.
But when they get there they thin the Ozone.
Countries around the world decided to stop
using the Ozone destroying chemicals .
The hole will heal itself in 50 years or so if
most people stop using ozone destroying
chemicals
Source: Brainpop
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