ozone depletion
ozone is a gas
their is a layer of ozone high up in the atmosphere
the ozone layer is 25 km of the ground
the sun sends out ultraviolet rays it can harm living organisms
the ozone layer reduces the ultraviolet ray that reaches the ground
in 1985 scientists discovered that their is less ozone layer in the antarctic
gasses called cfcs cause problems in the ozone layer
cfcs are man made they were invented in the 1920s
today cfcs are banned
cfcs have damaged the ozone layer in the antarctic
5 Views