Question

3) Himadri and Himachal
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Himadri
Himachal
The Greates Himalayas is the lesses Himalayas
known as the Himadri known as the Himachal
2. It is the northern most It is the middle rang
range the Himalayas of the Himalayas
3. It is about 25 km wide It is about so km wie​

Answer 1

Answer:

The Himalayas are geologically young and structurally fold mountains. They stretch over the northern borders of India. The Himalayas consists of three parallel ranges in its longitudinal extent.

• Inner Himalayas/Greater Himalayas/Himadri

• Middle Himalayas/Lesser Himalayas/Himachal

• Outer Himalayas/Shiwaliks

→ Himadri

i) It is the most continuous range consisting of the loftiest peaks with an average height of 6000 metres.

ii) The core of this part of Himalayas is composed of granite and are asymmetric in nature.

iii) A number of glaciers descend from this range.

→ Himachal

i) The ranges are mainly composed of highly compressed and altered rocks.

ii) The altitude varies between 3700 and 4500 metres and the average width is of 50 km.

iii) Pir Panjal, Dhaula Dhar and Mahabharat are some of the prominent ranges. Famous valley of Kashmir, the Kangra and Kullu Valley in Himachal Pradesh are some famous hill stations.

→ Shiwaliks

i) The outer-most range of the Himalayas is called the Shiwaliks. They extend over a width of 10-50 km and have an altitude varying between 900-1100 metres.

ii) These ranges are composed of unconsolidated sediments brought down by rivers. These valleys are covered with thick gravel and alluvium.

iii) The longitudinal valley lying between lesser Himalayas and the Shiwaliks are known as Duns. Dehra Dun, Kotli Dun and Patli Dun are some of the well-known Duns.

Source: https://vs.eyeandcontacts.com/2021/01/ncert-class-9-geography-chapter-2.html

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