Question

The core of the Great Himalayas is made up of _____________.
a.Sandstone
b.Slate
c.Limestone
d.Granite

Answer 1

Hint: The Himalayas are made up of the rocks which are predominantly found in the Earth’s crust and are extensively used in the interiors of structures.

Complete Step by Step Answer:
a.Sandstone: Sandstone is a sedimentary rock and since the Himalayas are not sedimentary mountain ranges, they cannot be composed of sandstone. The major mountains which are made up of sandstone are the Andes mountains in South America. So, it is an incorrect option.
b.Slate: Slate is a metamorphic rock which is generally found in the mountain ranges of peninsular India and the Deccan Plateau. It is not predominant in the Earth's crust and since the Himalayas are made up of surface based rocks, slate cannot be the right answer. So, it is an incorrect option.
c.Limestone: Limestone is a sedimentary rock and since the Himalays have igneous rocks, this type of rock cannot be the major constituent of the Himalayas. So, it is an incorrect option.
d.Granite: Granite is an igneous rock which is formed due to the cooling of the molten magma after volcanic eruptions. Since the Himalayas are located at the site of the inexistent Tethys Sea, the surface has too many deposits of granite rocks which were lifted due to collision of the tectonics. So, it is the correct option.

Note: The Himalayas are also made up of multiple glaciers and other water bodies which are very rich in mineral content, thereby providing an important source of livelihood to many.