major domains of the earth

Define

          Meteors-

         Isothermal-

Debris-

Name the different layers of atmosphere.

• the troposphere

• the stratosphere

• the mesosphere

• the thermosphere

• the exosphere

Write about the features of stratosphere.

•   It extends up to 50 km above the planet’s surface.

• The temperature in this layer increases with the height.

• This zone has high ozone concentration.

Explain the term ‘biosphere’. What is its significance?

        ___________  is the lowest layer of the atmosphere.

      _________   is the highest layer of the atmosphere.

     _________    is dense near the earth’s surface.

        ________ refers to the regions of the earth in which life exists.