UPSC Exam  >  UPSC Tests  >  Geography for UPSC CSE  >  GC Leong Test: Landforms Of Glaciation - 1 - UPSC MCQ Download as PDF

GC Leong Test: Landforms Of Glaciation - 1 - UPSC MCQ


Test Description

10 Questions MCQ Test Geography for UPSC CSE - GC Leong Test: Landforms Of Glaciation - 1

GC Leong Test: Landforms Of Glaciation - 1 for UPSC 2024 is part of Geography for UPSC CSE preparation. The GC Leong Test: Landforms Of Glaciation - 1 questions and answers have been prepared according to the UPSC exam syllabus.The GC Leong Test: Landforms Of Glaciation - 1 MCQs are made for UPSC 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for GC Leong Test: Landforms Of Glaciation - 1 below.
Solutions of GC Leong Test: Landforms Of Glaciation - 1 questions in English are available as part of our Geography for UPSC CSE for UPSC & GC Leong Test: Landforms Of Glaciation - 1 solutions in Hindi for Geography for UPSC CSE course. Download more important topics, notes, lectures and mock test series for UPSC Exam by signing up for free. Attempt GC Leong Test: Landforms Of Glaciation - 1 | 10 questions in 12 minutes | Mock test for UPSC preparation | Free important questions MCQ to study Geography for UPSC CSE for UPSC Exam | Download free PDF with solutions
1 Crore+ students have signed up on EduRev. Have you? Download the App
GC Leong Test: Landforms Of Glaciation - 1 - Question 1

Consider the following statements. 

1. The peaks of the loftier mountains project above the surface as nunataks 

2. When the ice sheets reach right down to the sea they often extend outwards into the polar waters and float as ice shelves 

3. They terminate in precipitous cliffs. When they break into individual blocks, these are called icebergs. 

Which of these statements is/are correct?

Detailed Solution for GC Leong Test: Landforms Of Glaciation - 1 - Question 1

 

  • The peaks of the loftier mountains project above the surface as nunataks. When the ice sheets reach the sea, they often extend outwards into the polar waters and float as ice shelves. 

  •  

    They terminate in precipitous cliffs. When they break into individual blocks, these are called icebergs.

 

 

 

GC Leong Test: Landforms Of Glaciation - 1 - Question 2

Consider the following statements.

1. Glaciation generally gives rise to erosional features in the highlands and depositional features on the lowlands 

2. A glacier plays a combined role of erosion, transportation and deposition throughout its course

Which of these statements are correct?

Detailed Solution for GC Leong Test: Landforms Of Glaciation - 1 - Question 2

Both statements are correct.

Statement 1 is generally true - glaciers erode the landscape as they move downhill, resulting in erosional features such as U-shaped valleys, cirques, arêtes, and horns in the highlands. As glaciers melt and deposit the sediments they have transported, they form depositional features such as moraines, drumlins, eskers, and kames in lowland areas.

Statement 2 is also true - glaciers erode the landscape as they move, transport large amounts of rock and sediment, and deposit this material elsewhere. This is why glaciers are often described as "agents of erosion, transportation, and deposition."

GC Leong Test: Landforms Of Glaciation - 1 - Question 3

Consider the following statements.

1. By plucking, the glacier scratches, scrapes, polishes and scours the valley floor with the debris frozen into it. 

2. By abrasion the glacier freezes the joints and beds of the underlying rocks, tears out individual blocks and drags them away 

Which of these statements is/are correct?

Detailed Solution for GC Leong Test: Landforms Of Glaciation - 1 - Question 3

 

  • The glacier scratches, scrapes, polishes, and scours the valley floor with the debris frozen into it by abrasion. 

  • By plucking the glacier freezes the joints and beds of the underlying rocks, tears out individual blocks and drags them away.

GC Leong Test: Landforms Of Glaciation - 1 - Question 4

The rate of the erosion by glaciation is determined by the: 

1. Velocity of the flow 

2. Gradient of the slope 

3. Temperature of the ice 

Choose from the following options.

Detailed Solution for GC Leong Test: Landforms Of Glaciation - 1 - Question 4
 
  • Large angular fragments cut deep into the underlying rocks, so all glaciated floors bear evidence of striation or scratching. The finer materials smooth and polish the rock surfaces and produce finely ground rock flour.

  • The rate of erosion is determined by several factors such as the velocity of flow, gradient of the slope, the weight of the glacier, the temperature of the ice, and the valley's geological structure.

GC Leong Test: Landforms Of Glaciation - 1 - Question 5

Consider the following statements. 

1. Cirque is also known as a corrie in Scotland 

2. There is a rocky ridge at the exit of the corrie and, when the ice eventually melts, water collects behind this barrier, to form a corrie lake or tarn

Which of these statements is/are correct?

Detailed Solution for GC Leong Test: Landforms Of Glaciation - 1 - Question 5
 
  • The plucking process operates on the back-wall, steepening it and the ice's movement abrades the floor, deepening the depression into a steep, horse-shoe-shaped basin called a cirque (in French). 

  • It is also known as a corrie in Scotland and a cwm in Wales. There is a rocky ridge at the exit of the corrie and, when the ice eventually melts, water collects behind this barrier, to form a corrie lake or tarn.

GC Leong Test: Landforms Of Glaciation - 1 - Question 6

Consider the following statements. 

1. When two corries cut back on opposite sides of a mountain, knife-edged ridges are formed called aretes 

2. Where three or more cirques cut back together, their ultimate recession will form an angular horn or pyramidal 

Which of these statements are not correct?

Detailed Solution for GC Leong Test: Landforms Of Glaciation - 1 - Question 6

Both statements are correct.

Statement 1 is describing the formation of aretes, which are narrow, knife-edged ridges that form between two adjacent corries (also known as cirques) that have eroded back towards each other on opposite sides of a mountain.

Statement 2 is describing the formation of a horn, which is a pointed mountain peak that forms when three or more cirques erode back towards a central point, resulting in a sharp, angular peak.

Therefore, neither statement is incorrect.

GC Leong Test: Landforms Of Glaciation - 1 - Question 7

Consider the following statements. 

1. Bergschrund is known as rimaye in French 

2. Bergschrund helps climbers in many ways

Which of these statements is/are correct?

Detailed Solution for GC Leong Test: Landforms Of Glaciation - 1 - Question 7
  • Bergschrund: At the head of a glacier, where it begins to leave a corrie's snowfield, a deep vertical crack opens up called a bergschrund (in German) or rimaye (in French). 

  • This happens in summer when, although the ice continues to move out of the corrie, there is no new snow to replace it. In some cases, not one but several such cracks occur. 

  • The bergschrund presents a major obstacle to climbers. Further down where the glacier negotiates a bend or a precipitous slope, more crevasses or cracks are formed.

GC Leong Test: Landforms Of Glaciation - 1 - Question 8

The Matterhorn oxygen Leyland is a classic example of:

The Matterhorn oxygen Leyland is a classic example of Pyramid peak

GC Leong Test: Landforms Of Glaciation - 1 - Question 9

Ribbon lakes are sometimes referred to as: 

1. Trough lakes 

2. Finger lakes 

Choose from the following options

Detailed Solution for GC Leong Test: Landforms Of Glaciation - 1 - Question 9
 
  • A valley which has been glaciated takes a characteristic U-shape, with a wide, flat floor and very steep sides. 

  • After the ice's disappearance, the deep sections of these long, narrow glacial troughs may be filled with water forming ribbon lakes, such as Loch Ness and Lake Ullswater in Britain. They are sometimes referred to as Trough lakes and Finger lakes.

GC Leong Test: Landforms Of Glaciation - 1 - Question 10

The main valley is eroded much more rapidly than the tributary valleys as it contains a much larger glacier. After the ice has melted a tributary valley, it hangs above the main valley so that its stream plunges as a waterfall. Such tributary valleys are termed:

Detailed Solution for GC Leong Test: Landforms Of Glaciation - 1 - Question 10
Such tributary valleys are termed hanging valleys and may form a natural head of water for generating hydro-electric power.
185 videos|459 docs|258 tests
Information about GC Leong Test: Landforms Of Glaciation - 1 Page
In this test you can find the Exam questions for GC Leong Test: Landforms Of Glaciation - 1 solved & explained in the simplest way possible. Besides giving Questions and answers for GC Leong Test: Landforms Of Glaciation - 1, EduRev gives you an ample number of Online tests for practice
185 videos|459 docs|258 tests
Download as PDF

How to Prepare for UPSC

Read our guide to prepare for UPSC which is created by Toppers & the best Teachers
Download the FREE EduRev App
Track your progress, build streaks, highlight & save important lessons and more!