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On average the earth receives how many calories per sq cm per minute at the top of the atmosphere?
A3.94
B1.94
C2.94
D0.94
Answer & Solution
Correct answer: B. 1.94
1. The sun's rays fall obliquely on the geoid.
2. The figure is 1.94 calories.
3. It varies slightly with earth-sun distance.
_Source: NCERT Class 11 Fundamentals of Physical Geography, Chapter 9, Solar Radiation, Heat Balance and Temperature._
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