Class 6  >  Social Studies (SST) Class 6  >  Chapter Notes: Major Landforms of the Earth

Chapter Notes: Major Landforms of the Earth Notes | Study Social Studies (SST) Class 6 - Class 6

Document Description: Chapter Notes: Major Landforms of the Earth for Class 6 2022 is part of Social Studies (SST) Class 6 preparation. The notes and questions for Chapter Notes: Major Landforms of the Earth have been prepared according to the Class 6 exam syllabus. Information about Chapter Notes: Major Landforms of the Earth covers topics like Overview, Mountains, Plateau, Plains, Landforms and the People.   and Chapter Notes: Major Landforms of the Earth Example, for Class 6 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for Chapter Notes: Major Landforms of the Earth.

Introduction of Chapter Notes: Major Landforms of the Earth in English is available as part of our Social Studies (SST) Class 6 for Class 6 & Chapter Notes: Major Landforms of the Earth in Hindi for Social Studies (SST) Class 6 course. Download more important topics related with notes, lectures and mock test series for Class 6 Exam by signing up for free. Class 6: Chapter Notes: Major Landforms of the Earth Notes | Study Social Studies (SST) Class 6 - Class 6
Table of contents
Overview
Mountains
Plateau
Plains
Landforms and the People.  
1 Crore+ students have signed up on EduRev. Have you?

Overview

  • The surface of the Earth is not the same everywhere. 
  • Within the earth, a continuous movement is taking place.  
  • The Earth has an infinite variety of landforms. Some parts of the lithosphere may be rugged and some flat.

Major Landforms of the Earth: Mountains, Plateaus and PlainsMajor Landforms of the Earth: Mountains, Plateaus and Plains

  • Landforms are a result of two processes. 
  • Internal Process: The ‘internal process’ leads to the upliftment and sinking of the Earth’s surface.
  • External Process: Second, the ‘external process’ is the continuous wearing down and rebuilding of the land surface.
  • Erosion: The wearing away of the earth’s surface is called erosion.
  • Deposition: The surface is being lowered by the process of erosion and rebuilt by the process of deposition.  
  • These two above processes are carried out by running water, ice and wind.
  • The different landforms depending on elevation and slope are mountains, plateaus and plains are: 

Mountains

MountainsMountains

  • A mountain is any natural elevation of the earth’s surface with a peak or a summit. 
  •  It is considerably higher than the surrounding area. 
  • Some mountains are even higher than the clouds.  
  • Owing to the harsh climate, fewer people live in the mountain areas. 
  • Since the slopes are steep, less land is available for farming.
  • Glaciers: In some mountains, there are permanently frozen rivers of ice. They are called glaciers.
  • Range: A continuous chain of mountains over a large area is called ‘Range’.
  • The Himalayas, The Alps and The Andes in Asia, Europe and South America respectively are some leading mountains.
  • There are three types of mountains
    Fold mountains
    Block mountains
    Volcanic mountains.
  • Fold Mountains: The Himalayan Mountains and the Alps are young fold mountains with rugged relief and high conical peaks. The Aravali range in India is one of the oldest fold mountain systems in the world. The Appalachians in North America and the Ural mountains in Russia have rounded features and low elevation. They are very old fold mountains.

Fold MountainsFold Mountains

  • Block Mountains: Block Mountains are created when large areas are broken and displaced vertically. The uplifted blocks are termed as horsts and the lowered blocks are called graben. The Rhine valley and the Vosges mountain in Europe are examples of such mountain systems. 

Block MountainsBlock Mountains

  • Volcanic mountains: Volcanic Mountains are formed due to volcanic activity. Mt.Kilimanjaro in Africa and Mt.Fujiyama in Japan are examples of such mountains. Mountains are very useful. They are a storehouse of water. Many rivers have their source in the glaciers in the mountains. Reservoirs are made and the water is harnessed for the use of people.

Volcanic MountainsVolcanic Mountains

  • Mountains are a storehouse of water. Water from the mountains is also used for irrigation and the generation of hydroelectricity. Further, they have forests which give us fuel, fodder, shelter and other products.  

Plateau

  • A plateau is a flat-topped tableland. It is an elevated flat land.
  • A plateau may have one or more sides with steep slopes.  

A plateau in Brazil A plateau in Brazil 

  • The height of plateaus often varies from a few hundred metres to several thousand metres 
  • Plateaus, like mountains, may be young or old. 
  • The Deccan plateau in India is one of the oldest plateaus.
  • The East African Plateau in Kenya, Tanzania and Uganda and the Western plateau of Australia are other examples. 
  • The Tibet plateau is the highest plateau in the world.
  • Plateaus are useful as they are rich in mineral deposits.
  • Plateaus are very useful because they are rich in mineral deposits. As a result, many of the mining areas in the world are located in the plateau areas. 
  • The African plateau is famous for gold and diamond mining. 
  • In India, huge reserves of iron, coal and manganese are found in the Chhotanagpur plateau. 
  • In the plateau areas, there may be several waterfalls as the river falls from a great height. In India, the Hundru falls in the Chhotanagpur plateau on the river Subarnarekha and the Jog falls in Karnataka are examples of such waterfalls. 
  • The lava plateaus are rich in black soil that are fertile and good for cultivation. Many plateaus have scenic spots and are of great attraction to tourists.   

Plains

PlainsPlains

  • Plains are low-lying and flat stretches of land.  
  • Plains may be extremely level, slightly rolling and undulating.  
  • Plains are fertile. They are good for cultivation, transport and habitation.  
  • Most of the plains are formed by rivers and their tributaries. The rivers flow down the slopes of mountains and erode them. They carry forward the eroded material. 
  • Then they deposit their load consisting of stones, sand and silt along with their courses and in their valleys. It is from these deposits that plains are formed.
  • Some of the largest plains made by the rivers are found in Asia and North America.
  • For example, in Asia, these plains are formed by the Ganga and the Brahmaputra in India and the Yangtze in China.
  • Plains are the most useful areas for human habitation. 
  • There is a great concentration of people as more flat land is available for building houses, as well as for cultivation. 
  • Because of fertile soils, the land is highly productive for cultivation. In India too, the Indo-Gangetic plains are the most densely populated regions of the country. 

Landforms and the People.  

  • Humans have been living on different kinds of landforms in different ways. 
  • Life is difficult in mountainous areas. 
  • Plains provide much better conditions. It is easier to grow crops, build a house or a road in a plain than a mountain. 
  • Natural calamities such as earthquakes, volcanic eruptions, storms and floods cause widespread destruction. 

Destruction Caused by EarthquakeDestruction Caused by Earthquake

  • Quite often we use the land for wasteful purposes, for example constructing houses on fertile land. 
  • Similarly, we throw garbage on land or in water making them dirty.
The document Chapter Notes: Major Landforms of the Earth Notes | Study Social Studies (SST) Class 6 - Class 6 is a part of the Class 6 Course Social Studies (SST) Class 6.
All you need of Class 6 at this link: Class 6

Related Searches

study material

,

Free

,

MCQs

,

Summary

,

video lectures

,

Viva Questions

,

Chapter Notes: Major Landforms of the Earth Notes | Study Social Studies (SST) Class 6 - Class 6

,

Chapter Notes: Major Landforms of the Earth Notes | Study Social Studies (SST) Class 6 - Class 6

,

Extra Questions

,

Semester Notes

,

Exam

,

Objective type Questions

,

Chapter Notes: Major Landforms of the Earth Notes | Study Social Studies (SST) Class 6 - Class 6

,

shortcuts and tricks

,

Previous Year Questions with Solutions

,

mock tests for examination

,

Important questions

,

Sample Paper

,

past year papers

,

pdf

,

practice quizzes

,

ppt

;