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CBSE-IX-Social-Science

03: Drainage

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    3 - Drainage
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    Section : I
    SECTION I Page No 23:
  • Qstn #1
    Choose the right answer from the four alternatives given below.
  • Qstn #1-i
    Which one of the following describes the drainage patterns resembling the branches of a tree?

    -(a) Radial
    (c) Centrifugal
    (b) Dendritic
    (d) Trellis
    Ans : (b) Dendritic
  • Qstn #1-ii
    In which of the following states is the Wular Lake located?

    -(a) Rajasthan
    (c) Punjab
    (b) Uttar Pradesh
    (d) Jammu and Kashmir
    Ans : (d) Jammu and Kashmir
  • Qstn #1-iii
    The river Narmada has its source at

    -(a) Satpura
    (c) Amarkantak
    (b) Brahmagiri
    (d) Slopes of the Western Ghats
    Ans : The river Narmada has its source at

    (c) Amarkantak
  • Qstn #1-iv
    Which one of the following lakes is a salt water lake?

    -(a) Sambhar
    (c) Wular
    (b) Dal
    (d) Gobind Sagar
    Ans : Which one of the following lakes is a salt water lake?

    (a) Sambhar
  • Qstn #1-v
    Which one of the following is the longest river of the Peninsular India?

    -(a) Narmada
    (c) Godavari
    (b) Krishna
    (d) Mahanadi
    Ans : Which one of the following is the longest river of the Peninsular India?

    (c) Godavari
  • Qstn #1-vi
    Which one amongst the following rivers flows through a rift valley?

    -(a) Damodar
    (c) Krishna
    (b) Tungabhadra
    (d) Tapi
    Ans : Which one amongst the following rivers flows through a rift valley?

    (d) Tapi
    SECTION I SECTION I Page No 24:
  • Qstn #2
    Answer the following questions briefly.
  • Qstn #2-i
    What is meant by a water divide? Give an example.
    Ans : Any elevated area, such as a mountain or an upland, which separates two drainage basins is known as water divide; for example, the water divide between the Indus and the Ganga river systems. Ambala is located on this water divide. The Western Ghats form the main water divide in Peninsular India.
  • Qstn #2-ii
    Which is the largest river basin in India?
    Ans : The Ganga, which is over 2,500 km long, forms the largest river basin in India.
  • Qstn #2-iii
    Where do the rivers Indus and Ganga have their origin?
    Ans : The river Indus rises in Tibet, near Lake Mansarowar.

    The Ganga originates at the Gangotri Glacier on the southern slopes of the Himalayas.
  • Qstn #2-iv
    Name the two headstreams of the Ganga. Where do they meet to form the Ganga?
    Ans : The two headstreams of the Ganga are Bhagirathi and Alaknanda. They meet to form the Ganga at Devaprayag in Uttarakhand.
  • Qstn #2-v
    Why does the Brahmaputra in its Tibetan part have less silt, despite a longer course?
    Ans : Since Tibet has a cold and dry climate, the Brahmaputra carries a smaller volume of water and less silt in this region.
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