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9. Soil Science class 7 in English Medium ncert book solutions Additional Questions With Solutions
9. Soil Additional Questions With Solutions – Complete NCERT Book Solutions for Class 7 Science (English Medium). Get all chapter explanations, extra questions, solved examples and additional practice questions for 9. Soil Additional Questions With Solutions to help you master concepts and score higher.
9. Soil Science class 7 in English Medium ncert book solutions Additional Questions With Solutions
NCERT Solutions for Class 7 Science play an important role in helping students understand the concepts of the chapter 9. Soil clearly. This chapter includes the topic Additional Questions With Solutions, which is essential from both academic and examination point of view. The solutions provided here are prepared strictly according to the latest NCERT syllabus and follow the guidelines of CBSE to ensure accuracy and relevance. Each question is explained in a simple and student-friendly manner so that learners can grasp the concepts without confusion. These NCERT Solutions are useful for regular study, homework help, and exam preparation. All textbook questions are solved step by step to improve problem-solving skills and conceptual clarity. Students of Class 7 studying Science can use these solutions to revise important topics, understand difficult questions, and practise effectively before examinations. The chapter 9. Soil is explained in a structured way, making it easier for students to connect the theory with the topic Additional Questions With Solutions. By studying these updated NCERT Solutions for Class 7 Science, students can build a strong foundation, boost their confidence, and score better marks in school and board exams.
9. Soil
Additional Questions With Solutions
Additional Questions With Solutions
Ques: What is humus?
Ans: The rotten death material presence in soil is known as humus.
Ques: what is weathering?
Ans: The breaking down of rocks by the action of wind, water, and climate. This process is called weathering.
Ques: which are those factors which influence the nature of soil?
Ans:
(i) Rocks from which it has been formed.
(ii) Vegetation that grows in it.
Ques: What is soil profile?
Ans: A vertical section through different layers of the soil is called the soil profile.
Ques: What are Horizons?
Ans: Each layer differ in feel (texture), colour, depth and chemical composition. These l-ayers are referred to as horizons.
Ques: why is the uppermost horizon generally dark in colour?
Ans: As it is rich in humus and minerals.
Ques: Name the layer of the soil which makes the soil fertile.
Ans: Humus.
Ques: What is topsoil?
Ans: The upper layer is generally soft, porous and can retain more water; it is called the topsoil or the A-horizon.
Ques: In how many layers has soil profile been divided?
Ans: Soil profile has been divided in four layers.
(i) topsoil or A-horizon
(ii) B-horizon
- C-horizon
- Bedrock
Ques: What is called the layer of soil profile which is hard and difficult to dig?
Ans: Bedrock
Ques: What is soil?
Ans: The mixture of rock particles and humus is called the soil.
Ques: What are various classifications of soil?
Ans: The classifications of soil.
- Sandy soil.
- Clayey soil.
- Loamy soil.
Ques: Write three properties of sandy soil.
Ans:
- Sandy soils tend to be light.
- It is well aerated.
- It is rather dry.
Ques: Name the some important climatic factors which affect the soil profile and bring changes in the soil structure.
Ans: Soil is affected by the wind, rainfall, temperature, light and humidity etc.
Ques: What is percolation?
Ans: Absorbing water by the soil is known as percolation.
Ques: What is soil erosion?
Ans: The removal of land surface by water wind or ice is known as soil erosion.
Ques: Explain how soil is formed?
Ans: The soil is formed by the breaking down of rocks by the action of wind, water and climate.
Ques: List the differences between clayey soil and sandy soil.
Ans:
Ques: How is clayey soil useful for crops?
Ans: Clayey soil is useful for crops, because they are rich in humus and are very fertile.
See other sub-topics of this chapter:
1. topic -1 2. NCERT Exercise 3. Additional Questions With Solutions 4. Additional Questions With Solutions