describe any four major relief divisions of India land mass
Answers
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The Major Physiographic divisions of India : The relief divisions of India landmass can be divided in to the following groups.
➡️The Himalayas.
➡️The Indo - Gangetic plain.
➡️The Peninsular plateau.
➡️The coastal plains.
➡️The Desert (The Thar)
➡️The Islands.
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Answer:
There are Six major relief features of India.
1. The Himalayas.
2. Northern plains or Indo Gangatic plains or The Great indian plains.
3. Indian Peninsular Lands.
4. Coastal Plains.
5. Indian Deserts.
6. Indian Islands
Explanation:
THE HIMALAYAS
The Himalayas are one of the youngest mountain
ranges in the world.
They form the northern boundary of India, extending from Jammu and Kashmir in the west to Assam, Manipur and Mizoram in the east.
The total length of this chain is about 5000 km of which about 2500 km stretches
in the form of an arc along the border.
The Himalayas comprise a number of almost parallel
ranges.
The main range rises to an average elevation
of 6000 meter above mean sea level. This is the
birth place of multitude of glaciers some of which
are among the longest in the world. These are called
Himadri or Greater Himalayas. The average height
is 6,100 metres above mean sea level. It is snow-
bound throughout the year. It contains the world’s
highest peaks, e.g., Mt Everest (8,848 m),
Kanchenjunga (8,598 m), Dhaulagiri (8,166 m) and
Nanga Parbat (8,126 m).
2.The Northen Plains.
This plain is about 2400 km in length and 240
to 320 km broad and formed by the basin of three
distinct river systems the Indus, the Ganga and the
Brahmaputra. These rivers have deposited soil which
originates due to friction with the mountains. They
include an area of 7 lakh square km, one of the
largest among the plains of the world. They are
widest in Punjab-Haryana and narrowest in Bihar.
The older alluvium deposited higher than the level
of flood plain is called bhangar whereas the newer
alluvium forming the flood plain is called Khadar.
It extends from West-Bengal to Punjab. They are
one of the most densely populated area on the earth.
Soil is very fertile and climate very healthy. This
plain is very productive.
The Coastal Plains
In between the ghats and coasts on eastern as well
as western side, there exists plains. The western
plains are narrower than the eastern plains. The
eastern coastal plain consists of river deltas formed
by Mahanadi, Godavari, Krishna and Cauvery
interspersed with the lakes, namely Chilka (between
Godavari and Mahanadi), Kolleru (Godavari and
Krishna) and Pulicat (North of Chennai). The western
plains are formed by alluvial plains in Gujarat which
continues as Konkan plains in the south. The
comparatively narrow plains in Kerala has numerous
lagoons and splits along it. A lagoon is a shallow
stretch of water which is partly or completely
separated from the sea by a narrow strip of land
and a split is a narrow low lying area of sand.
The peninsular plateau is the name given to the
area spreading south of the Indo-Gangetic plain and
flanked by sea on three sides. The Deccan plateau
is shaped like a triangle with its base in the north.
The River Narmada, which flows through a rift
valley, divides the region into two parts: the Malva
plateau in the north and the Deccan Trap in the
south. Most of the rock in the plateau region are
very old and are of igneous type.