A) The Archaean
B) the Dharwar
C) The Cuddapah
D) the Vindhyan
Correct Answer: A
Solution :[a] The Archaean system is the oldest rock system of India. The rocks belonging to this system were formed at the time of cooling and solidification of the upper crust of the earth's surface in the pre-Cambrian era starting about 4000 million years ago.
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