The world’s second oldest rock dating back to 4.2 billion years has been discovered in which Indian state in May 2018?
A. Rajasthan
B. Gujarat
C. Odisha
D. Goa
Answer:C
The world’s second oldest rock dating back to 4.2 billion years has been discovered in which Indian state in May 2018?
A. Rajasthan B. Gujarat C. Odisha D. Goa