Detailed Solution:
The correct answer is “1, 2 and 3 are correct”.
1) The Greater Himalayas are primarily made up of granite, gneisses, and ancient schists, formed under intense heat and pressure, which destroyed any existing fossils.
2) The Lesser Himalayas were once part of an ancient ocean called the Tethys Sea. As the Indian plate collided with the Eurasian plate, the Tethys Sea was squeezed and uplifted, forming the Himalayas. The sedimentary rocks in the Lesser Himalayas contain marine fossils from this ancient sea.
3) The Shivalik Hills, also known as the Outer Himalayas, are the southernmost range of the Himalayas. They contain rich fossil deposits, including those of early hominids and prehistoric animals