{"id":18011,"date":"2021-02-05T14:28:39","date_gmt":"2021-02-05T08:58:39","guid":{"rendered":"https:\/\/mcq-questions.com\/?p=18011"},"modified":"2022-03-02T11:13:03","modified_gmt":"2022-03-02T05:43:03","slug":"ncert-solutions-for-class-11-geography-chapter-3-part-b","status":"publish","type":"post","link":"https:\/\/mcq-questions.com\/ncert-solutions-for-class-11-geography-chapter-3-part-b\/","title":{"rendered":"NCERT Solutions for Class 11 Geography Chapter 3 Drainage System"},"content":{"rendered":"

Detailed, Step-by-Step NCERT Solutions for Class 11 Geography<\/a> Chapter 3 Drainage System Questions and Answers were solved by Expert Teachers as per NCERT (CBSE) Book guidelines covering each topic in chapter to ensure complete preparation.<\/p>\n

Drainage System NCERT Solutions for Class 11 Geography Chapter 3<\/h2>\n

Drainage System Questions and Answers <\/span>Class 11 Geography Chapter 3<\/h3>\n

Question 1
\nChoose the right answer from the four alternatives given below :
\ni. Which one of the following rivers is known as the \u2018Sorrow of Bengal\u2019?
\n(a) The Gandak
\n(b) The Son
\n(c) The Kosi
\n(d) The Damodar
\nAnswer:
\n(d) The Damodar<\/p>\n

\"NCERT<\/p>\n

ii. Which one of the following rivers has the largest river basin in India?
\n(a) The Indus
\n(b) The Brahmaputra
\n(c) The Ganga
\n(d) The Krishna
\nAnswer:
\n(a) The Indus.<\/p>\n

iii. Which one of the following rivers is not included in \u2019 Panchnad \u2019 ?
\n(a) The Ravi
\n(b) The Chenab
\n(c) The Indus
\n(d) The Jhelum
\nAnswer:
\n(c) The Indus<\/p>\n

iv. Which one of the following rivers flows in the rift valley?
\n(a) The Son
\n(b) The Narmada
\n(c) The Yamuna
\n(d) The Luni
\nAnswer:
\n(b) The Narmada<\/p>\n

\"NCERT<\/p>\n

v. Which one of the following is the place of confluence of the Alkananda and the Bhagirathi?
\n(a) Vishnu Prayag
\n(b) Rudra Prayag
\n(c) Karan Prayag
\n(d) Deva Prayag
\nAnswer:
\n(d) Deva Prayag<\/p>\n

Question 2.
\nState the differences between the following :
\n(a) River Basin and Watershed
\n(b) Dendritic and Trellis drainage pattern
\n(c) Radial and Centripetal drainage pattern
\n(d) Delta and Estuary
\nAnswer:
\n(a) River Basin and Watershed<\/p>\n\n\n\n\n
River Basin<\/strong><\/td>\nWatershed<\/strong><\/td>\n<\/tr>\n
1. The watersheds of large rivers are known as river basins.
\n2. It is marked by synergy and unity.<\/td>\n		1. It is an area drained by a river.
\n2. It is demarcated by a line that separates the watershed of one river from the adjoining one.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

(b) Dendritic and Trellis drainage pattern.<\/p>\n\n\n\n\n
Dendritic<\/strong><\/td>\nTrellis<\/strong><\/td>\n<\/tr>\n
In dendritic pattern the drainage develops similar to the branches of a tree.<\/td>\nIn this pattern, the primary tributaries flow more or less parallel to one another and secondary tributaries join from the side.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\"NCERT<\/p>\n

(c) Radial and Centripetal drainage pattern<\/p>\n\n\n\n\n\n
Radial<\/strong><\/td>\nCentripetal<\/strong><\/td>\n<\/tr>\n
1. The rivers radiate from a hill.<\/td>\n1. The rivers flow into a lake or a depression<\/td>\n<\/tr>\n
2. For example, Amarkantak plateau.<\/td>\n2. For example, Sambhar lake in Rajasthan.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

(d) Delta and Estuary<\/p>\n\n\n\n\n
Delta<\/strong><\/td>\nEstuary<\/strong><\/td>\n<\/tr>\n
1. A delta is a triangular piece of alluvial lowland.
\n2.\u00a0 It is formed due to the deposition of sediment on the mouth of the river.<\/td>\n		1. The rivers which do not form delta form estuaries.
\n2.\u00a0 They do not deposit sediment on their mouth. This mouth is called estuary.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Question 3.
\nAnswer the following questions in about 30 words.<\/p>\n

(a) What are the socio-economic advantages of inter-linking of rivers in India?
\nAnswer:
\nThe rivers of India carry huge volume of water approximately 2,124,3 7 cubic km. per year. But it is unevenly distributed both in time and space. One part has much water which is wasted in floods and one part of the country suffers from drought. To minimise this problem the surplus water is transferred to the deficit basin through inter-linking system.<\/p>\n

(b) Write three characteristics of the Peninsular rivers.
\nAnswer:
\n(i) Subsidence of the western flank of the Peninsula led to its submergence below the sea during the early tertiatry period. Generally, it has disturbed the symmetrical plan of the river on either side of the original watershed.<\/p>\n

(ii) Upheaval of the Himalayas when the northern flank of the Peninsular block was subjected to subsidence and the consequent trough faulting. The Narmada and the Tapi flow in trough faults and fill the original cracks with their detritus materials. Hence, there is a lack of alluvial and deltaic deposits in these rivers.<\/p>\n

(iii) Slight tilting of the Peninsular block from north-west to the south-eastern direction gave orientation to the entire drainage system towards the Bay of Bengal during the same period.<\/p>\n

\"NCERT<\/p>\n

Question 4.
\nAnswer the following questions in not more than 125 words.
\n(i) What are the important characteristic features of the north Indian rivers? How are these different from the peninsular rivers?
\nAnswer:
\nThe Brahmaputra, the Ganga and the Indus are the north Indian rivers. Gangarises in the Gangotri glacier in Uttrakashi district of Uttranchal. Uttar Pradesh, Bihar and West Bengal are other states drained by this river. The river finally discharges itself into the Bay of Bengal.<\/p>\n

The Brahmaputra and the Indus originate on the southern slopes ofthe Tibetan highlands. These rivers run parallel to the axis of the Himalayas and take sudden turn towards the south cutting deep gorges in the mountain ranges to reach the great plain.<\/p>\n

Important characteristics:<\/p>\n