9. Soil Class 7 Science [LATEST] Solutions topic -1 in English - CBSE Study
NCERT Solutions for Class 7 Science are carefully prepared according to the latest CBSE syllabus and NCERT textbooks to help students understand every concept clearly. These solutions cover all important 9. Soil with detailed explanations and step-by-step answers for better exam preparation. Each topic -1 is explained in simple language so that students can easily grasp the fundamentals and improve their academic performance. The study material is designed to support daily homework, revision practice, and final exam preparation for Class 7 students. With accurate answers, concept clarity, and structured content, these NCERT solutions help learners build confidence and score higher marks in their examinations. Whether you are revising a specific topic or preparing an entire chapter, this resource provides reliable and syllabus-based guidance for complete success in Science.
Class 7 English Medium Science All Chapters:
9. Soil
1. 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.
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