Tips and Tricks on Atmosphere


The Earth is wrapped in a layer of gas called atmosphere. It is 500 km (300 mi) thick, being made of a mix of about 10 gases, called air.

The air is made by nitrogen (78 %), oxygen (21 %) and other gases (argon, carbon dioxide, helium, neon). There are also contaminants, like toxic gases, smoke, salt, dust and volcanic ash.

Planes do not fly over 9-11 km (5.5-7 mi). It is the warmest layer, because the reflected sun rays heat up the air.

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