9. Soil Class 7 Science [LATEST] Solutions NCERT Exercise 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 NCERT Exercise 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
2. NCERT Exercise
Exercise NCERT Book
Tick the most suitable answer in questions 1 and 2.
Q1. In addition to the rock particles, the soil contains
(i) air and water (ii) water and plants
(iii) minerals, organic matter, air and water
(iv) water, air and plants
Answer:
(iii) Minerals, organic matter, air and water.
Q2. The water holding capacity is the highest in
(i) sandy soil (ii) clayey soil
(iii) loamy soil (iv) mixture of sand and loam
Answer:
(ii) Clayey soil.
Q3. Match the items in Column I with those in Column II:
Column I Column II
(i) A home for living organisms (a) Large particles
(ii) Upper layer of the soil (b) All kinds of soil
(iii) Sandy soil (c) Dark in colour
(iv) Middle layer of the soil (d) Small particles and packed tight
(v) Clayey soil (e) Lesser amount of humus
Answer:
| Column I | Column II |
| (i) A home for living organisms | (b) All kinds of soil |
| (ii) Upper layer of the soil | (c) Dark in colour |
| (iii) Sandy soil | (a) Large particles |
| (iv) Middle layer of the soil | (e) Lesser amount of humus |
| (v) Clayey soil | (d) Small particles and packed tight |
Q4. Explain how soil is formed.
Answer:
Soil is formed by the breaking down of rocks by the action of wind, water and climate. This process is called weathering and further addition of humus formed by the decomposition of organic matter on the earth's surface make it fertile.
Q5. How is clayey soil useful for crops?
Answer:
Clayey soil retains water to a great extent. Thus the crops which require more water such a soil as, wheat etc. Grow well in clayey soil.
Q6. List the differences between clayey soil and sandy soil.
Answer:
Q7. Sketch the cross section of soil and label the various layers.
Answer:
Q8. Razia conducted an experiment in the field related to the rate of percolation. She observed that it took 40 min for 200 mL of water to percolate through the soil sample. Calculate the rate of percolation.
Answer:
Q9. Explain how soil pollution and soil erosion could be prevented.
Answer:
Cutting of trees and deforestayion should be effort should be made to increase the green areas.
Q10. Solve the following crossword puzzle with the clues given:
Across 2. Plantation prevents it.
5. Use should be banned to avoid soil pollution.
6. Type of soil used for making pottery.
7. Living organism in the soil. Down
1. In desert soil erosion occurs through.
3. Clay and loam are suitable for cereals like.
4. This type of soil can hold very little water.
5. Collective name for layers of soil.
Topic Lists: