Class 7 9. Soil topic -1: NCERT Book Solutions
Class 7 chapter 9. Soil Important key points for quick revision for board exams, ssc and upsc exams preparaion.
NCERT Solutions
All chapters of ncert books Science 9. Soil topic -1 is solved by exercise and chapterwise for class 7 with questions answers also with chapter review sections which helps the students who preparing for UPSC and other competitive exams and entrance exams.
Class 7 chapter 9. Soil Important key points for quick revision for board exams, ssc and upsc exams preparaion. - 9. Soil - topic -1: NCERT Book Solutions for class 7th. All solutions and extra or additional solved questions for 9. Soil : topic -1 Science class 7th:English Medium NCERT Book Solutions. Class 7 chapter 9. Soil Important key points for quick revision for board exams, ssc and upsc exams preparaion.
9. Soil : topic -1 Science class 7th:English Medium NCERT Book Solutions
Class 7 chapter 9. Soil Important key points for quick revision for board exams, ssc and upsc exams preparaion. - 9. Soil - topic -1: NCERT Book Solutions for class 7th. All solutions and extra or additional solved questions for 9. Soil : topic -1 Science class 7th:English Medium NCERT Book Solutions.
Class 7 9. Soil topic -1: NCERT Book Solutions
NCERT Books Subjects for class 7th Hindi Medium
9. Soil
Class 7 chapter 9. Soil Important key points for quick revision for board exams, ssc and upsc exams preparaion.
topic -1
Chapter Review:
- The rotten death material presence in soil is known as humus.
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The mixture of rock particles and humus is called the soil.
- The breaking down of rocks by the action of wind, water, and climate. This process is called weathering.
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A vertical section through different layers of the soil is called the soil profile.
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Each layer differ in feel (texture), colour, depth and chemical composition. These layers are referred to as horizons.
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The upper layer is generally soft, porous and can retain more water; it is called the topsoil or the A-horizon.
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Absorbing water by the soil is known as percolation.
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The removal of land surface by water wind or ice is known as soil erosion.
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The soil is formed by the breaking down of rocks by the action of wind, water and climate.
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The best topsoil for growing plants is loam. Loamy soil is a mixture of sand, clay and another type of soil particle known as silt.
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Clayey soil is used to make pots, toys and statues.
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Soil is affected by wind, rainfall, temperature, light and humidity.
Class 7 chapter 9. Soil Important key points for quick revision for board exams, ssc and upsc exams preparaion.
See other sub-topics of this chapter:
3. Additional Questions With Solutions
4. Additional Questions With Solutions
Class 7 chapter 9. Soil Important key points for quick revision for board exams, ssc and upsc exams preparaion. - 9. Soil - topic -1: NCERT Book Solutions for class 7th. All solutions and extra or additional solved questions for 9. Soil : topic -1 Science class 7th:English Medium NCERT Book Solutions. Class 7 chapter 9. Soil Important key points for quick revision for board exams, ssc and upsc exams preparaion.
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Notes And NCERT Solutions
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Science Chapter List
1. Nutrition in Plants
2. Nutrition in Animals
3. Fibre to Fabric
4. Heat
5. Acids, Bases and Salts
6. Physical and Chemical Changes
7. Weather, Climate and Adaptations of Animals to Climate
8. Winds, Storms and Cyclones
9. Soil
10. Respiration in Organisms
11. Transportation in Animals and Plants
12. Reproduction in Plants
13. Motion and Time
14. Electric Current and its Effects
15. Light
16. Water : A Precious Resource
17. Forests: Our Lifeline
18. Wastewater Story
