NCERT Solutions for Class 11 Geography Chapter 2 Structure and Physiography

Detailed, Step-by-Step NCERT Solutions for Class 11 Geography Chapter 2 Structure and Physiography were solved by Expert Teachers as per NCERT (CBSE) Book guidelines covering each topic in chapter to ensure complete preparation.

Structure and Physiography NCERT Solutions for Class 11 Geography Chapter 2

Structure and Physiography Questions and Answers Class 11 Geography Chapter 2

Question 1.
Choose the right answer from the four alternatives given below :
(i) In which part of Himalayas do we find the Karewa formation?
(a) North-eastern Himalayas
(b) Himachal-Uttaranchal Himalayas
(c) Eastern Himalayas
(d) Kashmir Himalayas
Answer:
(d) Kashmir Himalayas.

NCERT Solutions for Class 11 Geography Chapter 2 Structure and Physiography

(ii) In which of the following states is Loktak lake situated?
(a) Kerala
(b) Uttaranchal
(c) Manipur
(d) Rajasthan
Answer:
(c) Manipur.

(iii) Which one of the water bodies separates the Andaman from the Nicobar?
(a) 11° Channel
(b) 10° Channel
(c) Gulf of Mannar
(d) Andaman Sea
Answer:
(b) 10° Channel.

(iv) On which of the following hill range is the ‘Dodabeta’ peak situated?
(a) Nilgiri hills
(b) Annamalai hills
(c) Cardomom hills
(d) Nallamala hills
Answer:
(a) Nilgiri hills.

Question 2.
Answer the following questions in about 30 words :
(i) If a person is to travel to Lakshadweep, from which coastal plain does he. prefer and why?
Answer:
The Lakshadweep islands are located at a distance of 280 km. to 480 km. off the Kerala coast. Malabar coast is in Karnataka and Kerala. The Malabar coast has got certain distinguishing features in the form of Kayals (Back waters). By this coastal plain one can travel to Lakshadweep island.

NCERT Solutions for Class 11 Geography Chapter 2 Structure and Physiography

(ii) Where in India you will find a cold desert? Name some important ranges of this region.
Answer:
The north-eastern part of the Kashmir Himalayas is a cold desert, which lies between the Greater Himalayas and the Karakoram ranges. Between the Great Himalayas and the Pirpanjal range, lies the valley of Kashmir and Dal Lake.

(iii) Why is the western coastal plain devoid of any delta?
Answer:
Western coastal plain is a submerged coastal plain. The western coastal plains are narrow in the middle and broader towards north and south. This narrow belt provides a natural condition for the development of ports and harbours. The rivers flowing through this coastal plain do not form any delta.

Question 3.
Answer in less than 125 words :
(i) Make a comparison of the island groups of the Arabian Sea and the Bay of Bengal.
Answer:
There are two major islands groups in India :
(i) in the Bay of Bengal and
(ii) in the Arabian sea

Islands of Arabian Sea Islands of Bay of Bengal
There are approximately 36 islands of which 11 are inhabited. These groups consist of about 572 islands/islets.
The Lakshadweep islands are scattered between 8°N to 12°N and 71°E to 74°E longitude. These are situated roughly between 6°N to 14°N and 92°E to 94°E.
Minicoy is the largest island with an area of 453 sq. km. The entire group of island is divided into two broad categories : Andaman and Nicobar.
The entire group of island is broadly divided by the 11° Channel known as Amini Island and
Canannore island.
They are separated by 10° Channel.
The island is built of coral deposits. Barren land, the only active .volcano in India is situated in the Nicobar islands.
The islands of this archipelago have storm beaches. Saddle peak (738 m) in North Andaman, Mount Diavolo (515 m), Middle Andaman, Mount Koyob (South Andaman 460 m) and Thuiller (642 m) Great Nicobar.
The eleven islands are larger The coastal line has some coral deposits and beautiful beaches.
They consists of unconso lidated pebbles, cobbles, boulders, shingles on the eastern seaboard. These islands receive rainfall and have an equatorial type of vegetation.

NCERT Solutions for Class 11 Geography Chapter 2 Structure and Physiography

(ii) What are the important geomorphological features found / in the river valley plains?
Answer:
The third geological division of India is the plains formed by the river. Indus, the Ganga and the Brahmaputra known as river valley plains. It was formed during the third phase of Himalayan mountain formation. It has been gradually filled by the sediments brought by the Himalayan and peninsular rivers.

It is evident from the above discussion that there are significant variations among different region of India interim of their geological structure. Variation in physiography and relief is important among these. The geology and geomorphology of Indian river valley plain greatly influenced the physiography of India. The plains are formed by the alluvial deposits brought by the rivers.

The Brahmaputra river flows from the north-east to south-west direction and enters into Bangladesh. These river valley plains have a fertile alluvial soil cover which supports a variety of crops like wheat, rice, sugarcane and jute, and hence, supports a large population.

(iii) If you move from Badrinath to Sunderban delta along the course of river Ganga, what major geomorphological features will you come across?
Answer:
Ganga rises in Gangotri glacier near Gomukh (3,900 m) in Uttarkashi. Here it is known as Bhagirathi. It cuts through the Central and Lesser Himalayas in narrow gorges. At Devprayag, the Bhagirathi meets the Alaknanda; from here it is known as Ganga. The Ganga enters the plains at Haridwar.

From here it flows first to the south, then to the southeast and east before splitting into its two distributaries namely the Bhagirathi and the Hugli. The river finally discharges itself into the Bay of Bengal forming a large Sunderban delta formed by the mouth ‘ of river Ganga. Otherwise, this is a featureless plain.

NCERT Solutions for Class 11 Geography Chapter 2 Structure and Physiography

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