Q. Chhota Nagpur plateau mainly consists of which type of rocks?
Answer: Precambrian
Notes: The Chhota Nagpur Plateau in Jharkhand is composed mainly of Precambrian rocks such as granite, gneiss, and Archaean formations. These rocks date back over 540 million years and are part of the Dharwar Series metamorphics and Chotanagpur Gneissic Complex. The plateau’s geological structure was shaped by tectonic uplift during the Cenozoic era but its primary rock formations are Precambrian in origin. This distinguishes it from younger formations like Cenozoic, Mesozoic, or Paleozoic stones.