ok let get sum pple here smart sby. ur not the only one smart at science here:
-what is the ozone layer made of pple?
-why is it so important?
-how is the ozone, greenhouse effect and global warming linked?
-can the ozone be repaired?[i may know how...]
-how did pple get to north america during the ice age?
-what will happen to earth 5,000,000,000 years later?
now answer those.
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