Documents Air

1.4 AirDo you know? Our earth is surrounded by a huge blanket of air called atmosphere. All living beings on this earthCarbon dioxide depend on the atmosphere for their survival.…

Documents The Structure of the Atmosphere I well remember a brilliant red balloon which kept me completely...

The Structure of the Atmosphere I well remember a brilliant red balloon which kept me completely happy for a whole afternoon, until, while I was playing, a clumsy movement…