NCERT Class 6 Social Science Chapter 3
Landforms and Life
This chapter examines the major landforms on Earth such as mountains, plateaus, plains, and valleys, and explains how they are formed through natural processes. Students learn how different landforms influence the climate, vegetation, and human settlement patterns in various regions. The chapter highlights the interdependent relationship between physical geography and human life.
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Key Terms
- Mountain
- A large natural elevation of Earth's surface, typically rising steeply and reaching a peak, formed through tectonic activity or volcanic processes.
- Plateau
- A flat-topped elevated landform with steep sides, often formed by volcanic activity or the erosion of surrounding areas.
- Plain
- A large area of flat or gently rolling land, often formed by river deposits and highly suitable for agriculture and human settlement.
- Valley
- A low area of land between hills or mountains, usually formed by river erosion or glacial activity.
- Erosion
- The process by which wind, water, or ice wears away rock and soil, gradually reshaping landforms over time.
Frequently Asked Questions
What are the major types of landforms?▾
The major types of landforms are mountains, plateaus, plains, valleys, deserts, and coastal features like beaches and cliffs. Each is formed by different geological processes and supports different types of life and human activity.
Why are plains more densely populated than mountains?▾
Plains are more densely populated because they have flat, fertile land suitable for farming, easy transportation, abundant water supply from rivers, and a milder climate. Mountains are steep, have thin soil, harsh climates, and are difficult to access.
How are mountains formed?▾
Mountains are formed mainly through tectonic plate movements where plates collide and push land upward (fold mountains like the Himalayas), through volcanic activity (volcanic mountains), or through faulting where large blocks of land are pushed up.
What is the difference between a plateau and a plain?▾
A plateau is an elevated flat-topped landform with steep sides, while a plain is a large flat or gently rolling area at lower elevation. Plateaus are higher up and often bordered by escarpments, whereas plains are generally near sea level.
How do landforms affect climate?▾
Landforms greatly affect climate. Mountains block moisture-laden winds causing heavy rain on one side and rain shadow on the other. High altitudes have colder temperatures. Plains allow winds to blow freely. Coastal areas have moderate climates due to ocean influence.
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