name the 3 parallel ranges of the himalayas and explain 3 main features of the northern most rang.

Himadri

The features of Himadri are:

• It is the northern most range of Himalayas, also called the great or inner Himalayas.
• It includes the most prominent Himalayan peaks.
• It consists of granite.
• Many glaciers descend from Himadri.
• The average range of mountains found here is 6,000 metres

Himachal 

• The altitude varies between 3,700 and 4,500 metres and the average width is of 50 Km.
• The ranges are mainly composed of highly compressed and altered rocks.

Shiwalik

• They extend over a width of 10-50 Km and have an altitude varying between 900 and 1100 metres.
• These ranges are composed of unconsolidated sediments brought down by rivers from the main Himalayan ranges located farther north.