Class 11 Geography Important Chapter 11 Groundwater Movement

Class 11 Geography Important Chapter 11 Groundwater Movement 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 11 Groundwater Movement

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.

Groundwater Movement

Chapter: 11

THIRD UNIT : GEOMORPHIC FEATURES AND THEIR EVOLUTIONARY PROCESS

IMPORTANT QUESTION AND ANSWER

Answer The Following Questions:

1. What is meant by groundwater?

Ans: Water that seeps downward through the pores, cracks, and joints of soil or porous rocks is called groundwater.

2. How are Karst landforms formed?

Ans: Karst landforms are formed due to the chemical reaction between groundwater and soluble rocks like limestone or dolomite.

3. What is the main component of limestone?

Ans: The main component of limestone is Calcium Carbonate (CaCO₃).

4. What is meant by Karst topography?

Ans: A landscape formed due to chemical reactions between carbonated water and limestone or dolomite rocks is called Karst topography.

5. What are the features of limestone caves?

Ans: Limestone caves usually consist of many chambers, often have two openings, and may contain underground streams.

6. What is the main cause of limestone dissolution?

Ans: Limestone dissolves when rainwater absorbs carbon dioxide from the air and forms weak carbonic acid, which reacts with limestone.

7. How many types of sinkholes are there?

Ans: Sinkholes are mainly of two types.

8. Write the chemical formula of Calcium Carbonate.

Ans: The chemical formula of Calcium Carbonate is CaCO₃.

9. What is a Doline?

Ans: A Doline is a small depression formed when the surface collapses into underground cavities due to the dissolution of limestone, often creating a small pond or depression.

10. What are large depressions formed by limestone dissolution called?

Ans: Large depressions formed by limestone dissolution are called Uvalas.

Long Question & Answer:

1. What is Karst topography?

Ans: Karst topography is a special type of landform created by the chemical action of groundwater on limestone or dolomite rocks. When rainwater absorbs carbon dioxide from the air, it forms weak carbonic acid. This acidic water reacts with limestone underground, dissolving it slowly. As a result, landforms such as sinkholes, dolines, caves, stalactites, and stalagmites are formed. Karst topography develops mainly in regions with abundant limestone and ample rainfall.

2. What is a Sinkhole? Describe its formation process.

Ans: A sinkhole is a circular or oval depression formed by the dissolution of limestone.

When groundwater or rainwater dissolves the limestone bed, underground cavities are formed. Over time, the roof of the cavity collapses, forming a depression called a sinkhole.Several sinkholes may merge to form a large depression known as a Uvala.

3. Differentiate between Stalactite and Stalagmite.

Ans: Both stalactite and stalagmite are formed by calcium carbonate deposition inside limestone caves. Stalactites form when mineral-rich water drips from the roof of a cave, leaving behind deposits that hang down like icicles. Stalagmites form on the cave floor where the dripping water falls and deposits minerals upward. When both grow enough to meet, they form a limestone column.

4. Describe the process of formation of Karst landforms.

Ans: Karst landforms form mainly in soluble rocks such as limestone and dolomite.Rainwater containing carbonic acid seeps into the rock through cracks and dissolves it. This leads to the formation of sinkholes, caves, dolines, and underground streams. Over time, these features expand and combine to create a distinct Karst landscape.