Thursday, January 24, 2013

Atmosphere

Air contains 78% Nitrogen, 21% Oxygen, 0.03 % Carbon dioxide etc.

Atmosphere consists of Five layers
  • Troposphere (upto 16 km)
  • Stratosphere (16 to 50 km)
  • Mesosphere (50 to 80 km)
  • Thermosphere (80 to 640 km)
  • Exosphere (Space)
Troposphere is the layer closest to earth. All Living things comes under troposphere. The air is densest in troposphere.All weather phenomena takes place here

Stratosphere is the next layer after troposphere, It is used for flying aeroplanes as it is clear sky.

Mesosphere has the minimum temperature of atmosphere going upto -100 C.

Thermosphere contains Ions or charged particles which help in transmission of radio waves.

Exosphere is space as the air becomes very very thin.

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