Green house effect:

Answer 1

Energy from the earth travels to the earth as short wavelength radiation. Some of the short wavelength radiation reflects back into space as soon as it reaches the earths atmosphere but most of it easily passes through the atmosphere.

The energy of the radiation is absorbed when it reaches the surface of the earth. The surface of the earth now radiates the energy as long wavelength radiation.

Because the energy is trapped in the atmosphere this causes the temperature of the atmosphere to increase.

Question 1

Why is the green house effect important?

Answer 1

Without the green house effect the earth would be to cold for most living organisms to survive.

Question 2