Class 11 Geography Important Chapter 7 Landforms and Geomorphic Evolution

Class 11 Geography Important Chapter 7 Landforms and Geomorphic Evolution Solutions English Medium As Per AHSEC New Syllabus to each chapter is provided in the list so that you can easily browse through different chapters ASSEB Class 11 Geography Important Solutions and select need one. AHSEC Class 11 Elective Geography Additional Notes English Medium Download PDF. HS 1st Year Finance Important Solutions in English.

Class 11 Geography Important Chapter 7 Landforms and Geomorphic Evolution

Also, you can read the NCERT book online in these sections Solutions by Expert Teachers as per Central Board of Secondary Education (CBSE) Book guidelines. ASSEB Class 11 Elective Geography Additional Question Answer are part of All Subject Solutions. Here we have given HS 1st Year Elective Geography Important Notes in English for All Chapters, You can practice these here.

Landforms and Geomorphic Evolution

Chapter: 7

THIRD UNIT : GEOMORPHIC FEATURES AND THEIR EVOLUTIONARY PROCESS

IMPORTANT QUESTION AND ANSWER

Answer The Following Questions:

1. Which agents cause erosion, transportation, and deposition resulting from weathering on the rock surface?

Ans: Running water, wind, glaciers, and sea waves cause erosion, transportation, and deposition resulting from weathering.

2. What is meant by a Fluvial Process?

Ans: The geomorphic process carried out by running water or rivers is called the fluvial process.

3. What do you mean by Landform?

Ans: Landform refers to the natural physical features and shapes on the Earth’s surface such as mountains, hills, valleys, rivers, and deltas.

4. What are the main stages of landform development?

Ans: The main stages of landform development are three — Youth, Maturity, and Old age.

5. What is a Flood Plain?

Ans: The flat land on either side of a river that gets flooded during high water and becomes fertile due to sediment deposition is called a flood plain.

6. Give examples of landforms formed by aeolian processes.

Ans: Examples of landforms formed by aeolian processes are sand dunes, loess, and mushroom rocks — generally found in deserts.

7. In which type of rocks does the Karst process occur?

Ans: The Karst process occurs mainly in soluble rocks such as limestone and dolomite.

8. How is carbonic acid formed?

Ans: Carbonic acid is formed when carbon dioxide in the atmosphere mixes with rainwater.

9 . What causes the formation of a gorge?

Ans: A gorge is formed when a mountain river increases vertical erosion through soft rock layers, creating a deep V-shaped valley.

10. What is meant by Geomorphic Landscape?

Ans: The combined appearance of related landforms within a large area of the Earth’s surface is known as a geomorphic landscape.

Long Question & Answer:

1. What do you mean by Landform? How is it formed? Explain with examples.

Ans: Landforms are natural physical features of the Earth’s surface such as mountains, valleys, deltas, and waterfalls. They are formed mainly by the processes of erosion, transportation, and deposition caused by natural agents such as rivers, glaciers, winds, waves, and underground water.

For example:

(i) Rivers erode rocks and form valleys and deltas.

(ii) Glaciers form U-shaped valleys.

(iii) Wind forms sand dunes.

(iv) Waterfalls are formed due to strong erosion in mountain regions.

2. Describe the landforms formed by the Fluvial Process.

Ans: The fluvial process includes erosion, transportation, and deposition by rivers.In hilly areas, rivers erode rapidly forming V-shaped valleys, gorges, and waterfalls.In plains, rivers slow down, deposit sediments, and form flood plains and deltas. Meandering rivers form ox-bow lakes when old loops are cut off. Example: The Ganga-Brahmaputra delta is the largest delta in the world.

3. Explain the Glacial Process and the landforms formed by it.

Ans: The glacial process is carried out by glaciers — slow-moving rivers of ice. Glaciers erode rocks and form U-shaped valleys, cirques, and hanging valleys. Deposited materials form moraines (terminal, lateral, and ground moraines). Meltwater creates glacial lakes such as Roopkund and Hemkund in the Himalayas.