Class 11 Geography Important Chapter 9 Soil

Class 11 Geography Important Chapter 9 Soil 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 9 Soil

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.

Soil

Chapter: 9

THIRD UNIT : GEOMORPHIC FEATURES AND THEIR EVOLUTIONARY PROCESS

IMPORTANT QUESTION AND ANSWER

Answer The Following Questions:

1. What is meant by Soil?

Ans: Soil is the uppermost weathered layer of the Earth’s crust composed of rock particles mixed with air, water, minerals, and organic matter, providing a suitable environment for plants and animals to live.

2. What are the sources of organic matter in soil formation?

Ans: The sources of organic matter in soil formation are dry leaves, stems, dead bodies of plants and animals, excreta, and humus formed by bacterial decomposition.

3. Which process marks the beginning of soil formation?

Ans: The process of soil formation begins with the weathering of rocks.

4. What are the three main stages of the soil formation process?

Ans: The three main stages of the soil formation process are weathering, transportation, and deposition.

5. What do the terms Eluviation and Illuviation mean?

Ans: Eluviation means the washing down of minerals or materials from the upper layers of soil, and Illuviation means the accumulation of those materials in the lower layers.

6. How is humus formed?

Ans: When the dead parts of plants and animals are decomposed by microorganisms into organic matter, humus is formed.

7. How do plant roots help in soil formation?

Ans: Plant roots absorb minerals from the deeper layers and bring them to the upper surface, thereby enriching the topsoil.

8. Why does soil become stratified (layered)?

Ans: Due to long-term physical, chemical, and biological processes, horizontal layers with different properties are formed within the soil.

9. What is meant by Intrazonal Soil?

Ans: Intrazonal Soil refers to soil whose properties depend mainly on the parent rock or specific local factors like waterlogging or topography.

10. What is the process of downward percolation of water through soil layers called?

Ans: The process of downward percolation of water through soil layers is called leaching.

Long Question & Answer:

1. What is the Soil Formation Process? Describe its stages and environmental influence.

Ans: Soil formation is a long natural process where rocks, water, air, gases, and organic matter combine to form soil. The process involves three major stages — weathering, transportation, and deposition. Weathering breaks down rocks into fine particles. Transportation carries these materials by wind, rivers, or rainfall. Deposition accumulates them in a specific area. Over time, organic remains like dead plants and animals mix with minerals and air, forming fertile soil. Environmental factors such as parent rock, climate, topography, living organisms, and time control soil formation.