Vajiram Yellow - 10 Flashcards

1
Q

What body of water was closed through the formation of the Himalayas

A

Tethys Sea

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2
Q

Length of the HImalayas

A

2400 km

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3
Q

What’s a syntaxial bend?

A

Sharp bends at the eastern and western extremes of the HImalayas causing the mountain ranges to sharply change direction

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4
Q

What are the zones of the Himalayas

A
  1. Siwalik Zone
  2. Lesser Himalayas or Himachal
  3. Greater Himalayas or Himadri
  4. Trans-Himalayas
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5
Q

Average elevation of Siwalik zone

A

1500 m

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6
Q

What is the outermost zone of the Himalayas called

A

Siwalik

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7
Q

What separates the Siwaliks from the Lesser Himalayas

A

Group of fractures called the Main Boundary Fault

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8
Q

What are the siwaliks called in J&K and Daffla

A

Jammu hills

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9
Q

What are the Siwaliks called in the Northeast

A

Miri Mishmi

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10
Q

What’s the average elevation of the Lesser Himalayas

A

3,000 m

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11
Q

Are the Siwaliks a continuous or discontinous range

A

Continuous

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12
Q

Are the Himachal a continuous or discontinuous range

A

Discontinuous

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13
Q

What are the Doons

A

Valleys filled with sediments that occur along the junction of the Himachals and the Himadri

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14
Q

Name 3 prominent ranges of the Himachal Zone

A
  1. Pir Panjal
  2. Dhauladhar
  3. Mussoorie
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15
Q

Name the prominent valleys of the Himachal

A
  1. Kulu
  2. Kangra Lahul
  3. Spiti
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16
Q

What is the middle zone of the Himalayas called

A

Lesser Himalayas or Himachal

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17
Q

What is the inner zone of the Himalayas called

A

Greater Himalayas or Himachal

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18
Q

What separates the Himadri from the Himachals

A

Main Central Thrust

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19
Q

What’s the average elevation of the Greater Himalayas

A

6100 m

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20
Q

The Himadri have ___ out of ___ total highest / tallest peaks of the world

A

24, 28

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21
Q

What are the 4 prominent peaks of the Greater Himalayas

A
  1. Mt. Everest
  2. Everest South Peak
  3. Kanchenjunga I
  4. Lhotse I
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22
Q

Prominent passes in the Himadri

A
  1. Zoji La
  2. Shipki Pass
  3. Liphu Lekh Pass
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23
Q

In which state is the Zoji La pass located

A

Kashmir

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24
Q

In which state is the Shipki pass located

A

Shipki

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25
In which state is the Liphu Lekh pass located
Uttarakhand
26
Some prominent glaciers of the Greater Himalayas
1. Zemu 2. Gangotri 3. Kanchenjunga
27
What are the Trans Himalayas
Zone of the Himalayas which lie north of the Greater Himalayas
28
What are the mountain ranges of the Trans Himalayas zone
1. Karakoram Range 2. Ladakh range 3. Zaskar range
29
Which is the largest non-polar glacier in the world
Siachen glacier
30
Where is the Siachen glacier located
Karakoram Range
31
Which is the highest mountain peak in India
Ladakh Plateau in the Ladakh Range
32
What's the geographical feature that joins the Indian and Eurasian plates called
Indus-Tsangpo Suture Zone
33
Where is the Indus-Tsangpo Suture Zone located
Northern Trans Himalayas
34
Why do folded mountain belts form?
Folded mountain belts form due to compression of the earth's crust by the movement of lithospheric plates
35
True or False: The Himalayas are a folded mountain belt
True
36
The Himalayas were formed as the result of convergence of which tectonic plates
Eurasian and Indian plates
37
How many times did the Indian and Eurasian tectonic plates collide
5
38
Which part of the Himalayas were formed in the last phase of the collision?
The Siwalik Ranges
39
True or False: The Himalayan Ranges will continue to increase in height
True
40
41
The Himalayas are responsible for splitting the ___ into 2, thus creating the monsoons
jet streams
42
What are jet streams?
Jet streams are fast flowing, narrow air currents in the Earth's atmosphere.
43
True or false: The Himalayas give the subcontinent a tropical climate
True (?) | The Himalayas give india a temperate climate despite being in tropical
44
How do the Himalayas give the subcontinent a tropical climate
1. By insulating the subcontinent from the cold winds that originate in Siberia and Manchuria, which could bring temperate climactic conditions 2. The landmass heats up in summer, and the Himalayas keeps the heat in and the cold winds out.
45
Importance of the Himalayas
1. Birthplace of the Indus, Ganga and Brahmaputra systems 2. Rich reserves of subtropical and temperate timber 3. Rich in minerals like gypsum, limestone, and good quality phosphates 4. One of 12 major biodiversity zones of hte world 5. Exotic sites for recreation and tourism 6. Maintain regional hydrological and ecological balance 7. Prevent northward migration of the monsoons 8. Prevent cold Siberian winds in winter 9. Natural defensive border to the North and North East
46
Which area of the Himalayan range is rich in minerals like gypsum, limestone and phosphates
Siwaliks
47
The Siwaliks are rich in what minerals
1. Gypsum 2. Limestone 3. Good quality phosphates
48
What are the core agricultural regions of India
the Indo-gangetic plains
49
Role of the Indus, Ganga and Brahmaputra systems
1. Creating the fertile agricultural area of Indo-Gangetic doab 2. Water for agricultural irrigation and municipal needs
50
Himalayas have rich reserves of what species of timber
Subtropical and temperate
51
How many major biodiversity rich zones have been identified in the world ?
12
52
True or False: The Himalayas are one of the 12 major biodiversity rich zones in the world
True
53
Which are the Great Plains of India
1. Indus Plains 2. Ganga Plains 3. Brahmaputra Plains | Corresponding to the Himalayan river systems
54
What area is covered by the Great Plains of india
7.5 lakh sq kms
55
True or False: The Thar Plains are formed through deposit of alluvial sediment from rivers
False
56
True or False: The Rann of Kutch was not formed through deposit of alluvial sediment from rivers
True
57
True or False: The Great Plains are widest in the east and narrow towards the west
False | Widest in the West (Punjab-Rajasthan stretch)
58
What is known as the Indo Gangetic Divide
The Delhi Ridge of the Aravallis
59
Why is the Delhi Ridge of the Aravallis known as the Indo Gangetic divide?
It divides the Indus from the Brahmaputra plains
60
The Punjab-Haryana plains are made up of the floodplains and alluvial plains of which Rivers?
1. Ravi 2. Beas 3. Sutlej
61
What are the Khadar plains or Bets?
Plains in the Punjab-Haryana plains that are made of newer alluvium
62
What are the Chos
Parts of the Punjab plains with gullies and ravines
63
The Thar plains are a part of which section of the Great Plains?
Rajasthan Plains