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These exemplar solutions cover questions on layers of soil, types of soil, the role of soil, agricultural practices that aid soil health, water absorption of soil, along with day-to-day importance of soil.
- Explain how soil is formed. Answer 1: The soil is formed by a process called weathering of rocks. Weathering refers to the process of breaking down the soil by many factors which break down huge rocks i.e,.
- List the differences between clayey soil and sandy soil. Answer 2: CLAYEY SOIL. SANDY SOIL. The particles of clayey soil are finer. The particles of sandy soil are larger.
- Explain how soil pollution and soil erosion could be prevented. Answer 3: Soil pollution can be kept under control by the following measures
- How can a farmer convert acidic soil to neutral soil? Answer 4: A farmer can convert acidic soil into neutral soil by adding a small quantity of slaked lime or quicklime to neutralise the acidic nature of the soil.
- Multiple Choice Questions
- Very Short Answer Questions
- Short Answer Questions
- Long Answer Questions
- What Is Ncert Exemplar For Chapter 9- Soil of Class 7 Science About?
- Benefits of Downloading Class 7 Ncert Exemplar Science Chapter 9 Solutions
1. The microorganisms present in the soil require moisture (water) and nutrients for growth and survival. Choose from the options below the habitat (place) where the soil has plenty of water and nutrients. (a) Desert (b) Forest (c) Open field (d) Cricket ground Ans:(b) Forest 2. Availability of water and minerals in the soil for maximum absorption ...
5. Soil has particles of different sizes. Arrange the words given below in increasing order of their particle size. Rock, Clay, Sand, Gravel, Silt Ans:The following words are listed in ascending order of particle size: Clay < Silt < Sand < Gravel < Rock 6. The components of loamy soil are ______, ______ and ______. Ans:sand, slit and clay. 7. Read ...
9. Which of the following situations – ‘A’ or ‘B’ – is advantageous for absorption of water and minerals? Why? Situation ‘A’ : Growth and branching of roots in the C-horizon. Situation ‘B’ : Growth and branching of roots in A and B horizons. Ans:The absorption of water and minerals by plants is better in Situation 'B.' Horizon-A and horizon-B are t...
16. Continuously water-logged soils are disadvantageous for plant growth. Why? Ans:The foremost functions of roots are water absorption and uptake of oxygen from the pore vicinity of the soil. However, in waterlogged soils, water holds up the gaps that are present between the soil particles and further pushes the oxygen gas in the atmosphere. As a ...
NCERT stands for the National Council of Educational Research and Training. It is the institution that determines the syllabus and textbooks used for many state boards across the country as well as the national level board of the CBSE. Its textbooks are also used as the main ones for the JEE Main and JEE Advanced. NCERT Exemplar is one of the workb...
The Class 7 NCERT Exemplar Science Chapter 9 Solutions provided by Vedantu have been compiled by experts in the subject matter. Therefore, you do not have to worry about the accuracy of the answers at all. You can safely use these solutions to aid in your studies for this chapter of the syllabus.
Practicing class 7 important questions before the exam will help you to get excellent marks in the exam. 1: Name an important natural resource that supports growth of plants. Answer: Soil. 2: Name major soil pollutants. Answer: Polythene bags, plastics, waste products, chemicals and pesticides.
4. Why is soil regarded as one of the most important natural resources? Or Why is soil an inseparable part of our life? Answer: Soil is one of the most important natural resources. It supports the growth of plants by holding the roots firmly and supplying water and nutrients.
Jun 29, 2021 · Class 7 Science Chapter 9 Soil NCERT Questions and Answers - Notes • Soil is one of the most important natural resources. It provides anchorage to the plants and supplies water and nutrients.
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Soil filters the rainwater and regulates the discharge of excess rainwater, preventing flooding. It also buffers against pollutants, thus protecting groundwater quality. Soil is capable of storing large amounts of organic carbon.
