Humanities/Arts Exam > Humanities/Arts Videos > Geography Class 11 > Introduction: Landforms and their Evolution (Part - 1)
Introduction: Landforms and their Evolution (Part - 1) Video Lecture | Geography Class 11 - Humanities/Arts
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FAQs on Introduction: Landforms and their Evolution (Part - 1) Video Lecture - Geography Class 11 - Humanities/Arts
| 1. What are landforms and how do they evolve? |  |
Ans. Landforms are natural features on the Earth's surface that have distinct shapes and characteristics. They can include mountains, valleys, plateaus, canyons, and more. Landforms evolve through various geological processes such as erosion, weathering, tectonic activity, and deposition over long periods of time.
| 2. What factors contribute to the evolution of landforms? | |
Ans. Several factors contribute to the evolution of landforms. These include the type of rock and its resistance to erosion, the climate of the region, the presence of rivers or glaciers, tectonic activity such as volcanic eruptions or earthquakes, and the amount of time available for the processes of erosion and deposition to occur.
| 3. How does erosion shape landforms? | |
Ans. Erosion is the process by which wind, water, or ice wear away and remove the Earth's surface materials. It plays a significant role in shaping landforms. For example, rivers erode the land by carrying sediments and cutting through rocks, forming valleys and canyons. Glaciers can carve out U-shaped valleys and create lakes. Wind erosion can shape sand dunes and rocky outcrops.
| 4. What is weathering and how does it contribute to the formation of landforms? | |
Ans. Weathering is the process by which rocks and minerals are broken down into smaller pieces. It can occur through physical weathering (mechanical forces like freezing and thawing) or chemical weathering (reactions with water, air, or other substances). Weathering contributes to the formation of landforms by weakening rocks, making them more susceptible to erosion. For example, weathering can break down cliffs and create rocky coastlines.
| 5. How does tectonic activity influence the formation and evolution of landforms? | |
Ans. Tectonic activity, such as the movement of tectonic plates, plays a crucial role in the formation and evolution of landforms. It can create mountains through processes like folding and faulting. Volcanic activity can lead to the formation of volcanic landforms such as volcanoes and lava flows. Earthquakes caused by tectonic activity can also reshape the Earth's surface and create new landforms.
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Dec 22, 2024 Last updated |
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