The radius of the earth is about:
A6,370 km
B3,670 km
C12,700 km
D1,637 km
Answer & Solution
Correct answer: A. 6,370 km
1. No one can reach the centre to sample it.
2. The radius is 6,370 km.
3. Knowledge of the interior comes from inferences.
_Source: NCERT Class 11 Fundamentals of Physical Geography, Chapter 3, Interior of the Earth._
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