Question

Mention the nature of geology and topography of the himalayas,the peninsular plateau and the northern plains

Answer 1

the following are the nature of geology and topography of 
1. himalaya:
- also called himandri as they are covered by snow.
-it is the youngest mountain range in the world
-it is the continuous range with most loftiest peaks, with average height to be 6000m 
-core consists of granite

peninsular plateau:
-it is a tableland which consists of old crystalline, metamorphic and igneous rocks
-was formed due to breaking and drifting of godwana land.
-it part of oldest land mass
-has broad and shallow valleys and round hills
-is divided into central highland and deccan plateau 

Northern plains:
-it is formed by the 3 river system - Indus, Ganga and Barahmaputra
- it is formed of alluvial soil
-it is 2400km long
-it is very fertile
-densely populated physiograpic division 

Answer 2

$\sf\purple{1.Himalayas:-}$

$\sf\orange{↬}$The Himalayas, geologically young and structurally fold mountains structure over the northern borders of India. The Himalayas are loftiest and one of the most nugget barriers of the world.

$\sf\green{2. Peninsular\:Plateau:-}$

$\sf\blue{↬}$It was formed due to breaking and drifting of the Gondwana land and thus, making it a part of the oldest land mass. The part of Peninsular plateau lying to the north of Narmada river covering a major area of the Malwa plateau called Central Highlands. Peninsular Plateau contain of Western and Eastern Ghats folded by the volcanic activities in the area.

$\sf\pink{3.The\:Northern\:Plains:-}$

$\sf\red{↬}$ Northern Plains are drained by three River system- The Indus, Ganga and Brahmaputra along with their tributaries. They deposit alluvial soil in vast basin lying to the foothills of Himalaya.