5. Consider the statements regarding insolation which is nothing but the radiant energy received from the Sun in the form of heat and light:
1) Insolation received on the surface of the Earth decreases from Equator to the Poles
2) During Summer Solstice, maximum insolation received at the ground surface is between the 30 to 40 degree South latitudes
3) Insolation received is comparatively higher in the outer limit of the atmosphere than that is on the surface of the Earth
Which of the above statements is/are correct?