|The earth receives only two billionth part of the total solar radiation emitted by the sun. The probable causes are|
|I. Large distance of the earth from the sun.|
|II. Small size of the earth as compared to sun.|
|III. Empty space between the sun and the earth.|
|IV. The gaseous mass surrounding the earth.|
A) Statement I. II and III are correct.
B) Statement II, III and IV are correct.
C) Statement I and II are correct.
D) Statement III and IV are correct.
Correct Answer: C
Solution :[c] The solar radiation received by the earth is a function of the earth's distance from the sun and its size which can interrupt the Sun's says. The empty space between the sun and the earth as well as the gaseous mass surrounding the earth does not affect the total insolation received by the earth.
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