NCERT Solutions for Class 7 Science Chapter 9 Soil

Edited By Vishal kumar | Updated on Feb 16, 2024 06:14 PM IST

NCERT Solutions for Class 7 Science Chapter 9 Soil: In this chapter of NCERT Solution, you will study that soil is one of the most important natural resources. It provides anchorage to the plants and plays an important role to hold them in one place and also supplies water and nutrients. You also know that it is the home of many living organisms.

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NCERT Solutions for Class 7 Science Chapter 9 Soil
NCERT Solutions for C lass 7 Science Chapter 9 Soil: Solved Exercise Questions
Soil Class 7 Science Chapter 9-Topics
Key Features of Soil Class 7 Questions and Answers

In the NCERT solutions for Class 7 Science chapter 9 Soil, you will get questions based on the different types of soil, its composition, and its importance. In NCERT Solutions for Class 7 Science chapter 9 Soil, you will learn that soil is very essential for agriculture because it provides food, clothing, and shelter for all. You must have experience the earthy fragrance of soil after the first rain after long, is always refreshing. As you know, the weathering of rocks produces small particles of various materials like sand and clay. Inside the chapter you will learn that the relative amount of sand and clay depends upon the rock from which the particles were formed, that is the parent rock.

In NCERT solutions for Class 7 Science chapter 9 Soil, you will get questions based on the soil profile and their properties. If you need help in finding NCERT solutions of book to any other class, then don't worry class 7 science chapter 9 question answer will help you out. Students are recommended to go through NCERT Solutions for Class 7 to score high marks in their examination.

After going through this chapter, you must be able to get the NCERT solutions for Class 7 Science chapter 9 Soil of these questions which are mentioned below, as these questions are from the Science book of NCERT.

**As per the CBSE Syllabus 2023-24, this chapter chapter was removed.

Free download class 7 science chapter 9 ncert solutions PDF for CBSE exam.

NCERT Solutions for Class 7 Science Chapter 9 Soil

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NCERT Solutions for C lass 7 Science Chapter 9 Soil: Solved Exercise Questions

Tick the most suitable answer in question

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:

In addition to the rock particles, the soil contains (iii) minerals, organic matter, air and water.

The uppermost layer of soil is rich in humus and minerals. The humus makes the soil fertile and provides nutrients to growing plants.

Tick the most suitable answer in question 2.

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

The particles in clayey soil are very fine and are packed together tightly. This provides high water retention capacity. Thus, clayey soil has the highest water holding capacity.

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
A home for living organisms	(b) All kinds of soil
Upper layer of the soil	(c) Dark in colour
Sandy soil	(a) Large particles
Middle layer of the soil	(e) Lesser amount of humus
Clayey soil	(d) Small particles and packed tight

Q4. Explain how soil is formed.

Answer:

The breaking down of rocks by the action of wind, water and climate is known as weathering. Soil is formed by the process of weathering.

The type of rock decides the nature of soil formed and the type of vegetation that grows in it.

Q5. How is clayey soil useful for crops?

Answer:

Clayey soil is very useful for crops for the following reasons:

(i) It has the highest water retaining capacity.

(ii) It is very fertile because of humus present in it.

This makes it suitable for growing cereals like wheat, gram and paddy.

Q6. List the differences between clayey soil and sandy soil.

Answer:

Differences between clayey soil and sandy soil are:

Clayey soil	Sandy soil
Contains finer particles	Contains larger particles
Particles are tightly packed	Particles are loosely packed
It is fertile	It is not fertile
High water retention capacity	Low water retention capacity
Lowest percolation rate of water	Highest percolation rate of water

Q7. Sketch the cross section of soil and label the various layers.

Answer:

The various layers of soil are:

sohil

A- horizon or topsoil : Soft, porous and can retain more water.

B- horizon or middle layer: Harder and more compact.

C- horizon or third layer: Made up of small lumps of rocks with cracks and crevices.

Bedrock: Hard and difficult to dig.

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:

Given,

Time taken to percolate = $40\ min$

Amount of water = $200\ mL$

We know,

Rate of percolation $(mL/min)$ = $\frac{amount\ of\ water}{percolation\ time}$

$= \frac{200\ ml}{40\ min}$

$= 5\ mL/min$

Therefore, percolation rate of water = $5\ mL/min$

Q9. Explain how soil pollution and soil erosion could be prevented.

Answer:

The ways to prevent soil pollution are:

(i) Recycling of non-biodegradable wastes.

(ii) Limiting the use of pesticides and insecticides.

(iii) Making dumping grounds of non-biodegradable wastes far away from fertile land.

The removal of land surface by water, wind or ice is known as erosion. The ways to prevent soil erosion are:

(i) Afforestation or planting of trees.

(ii) Reduce cutting down of trees or deforestation.

(iii) Using step farming in hilly regions

Q10. Solve the following crossword puzzle with the clues given:

1658906899801

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.

Answer:

Across:

2. EROSION

5. POLYTHENE

6. CLAY

7. EARTHWORM

Down:

1. WIND

3. WHEAT

4. SANDY

5. PROFILE

Soil Class 7 Science Chapter 9-Topics

Topics for class 7 soil ncert solutions are given below:

Soil Teeming With Life
Soil Profile
Soil Types
Properties of Soil
Percolation Rate of Water in Soil
Moisture in Soil
Absorption of Water by Soil
Soil and Crops

NCERT Solutions for Class 7 Science – Chapter-Wise

Chapter 1	Nutrition in Plants
Chapter 2	Nutrition in Animals
Chapter 3	Fibre to Fabric
Chapter 4	Heat
Chapter 5	Acids, Bases and Salts
Chapter 6	Physical and Chemical Changes
Chapter 7	Weather, Climate and Adaptations of Animals to Climate
Chapter 8	Winds, storms and cyclones
Chapter 9	Soil
Chapter 10	Respiration in Organisms
Chapter 11	Transportation in Animals and Plants
Chapter 12	Reproduction in Plants
Chapter 13	Motion and Time
Chapter 14	Electric Current and its Effects
Chapter 15	Light
Chapter 16	Water: A Precious Resource
Chapter 17	Forests: Our Lifeline
Chapter 18	Wastewater Story

NCERT Solutions for Class 7- Subject Wise

NCERT Solutions for Class 7 Maths

NCERT Solutions for Class 7 Science

The Benefits of NCERT Solutions for Class 7 Science Chapter 9 Soil :

NCERT Solutions for C lass 7 Science chapter 9 Soil will also boost your knowledge.
NCERT is the base of your learning.
NCERT solutions for Class 7 Science chapter 9 Soil will also help you to understand all the concepts easily.
You will get all the answers to this chapter and it will help you to score good marks in your school exam.

Key Features of Soil Class 7 Questions and Answers

Comprehensive Coverage: The class 7 science chapter 9 question answer covers all the questions and exercises in Chapter 9 of the NCERT Class 7 Science textbook related to soil.
Step-by-Step Explanations: Each question of soil class 7 ncert solutions is explained in a step-by-step manner, making it easier for students to understand and follow.
Clear and Concise Language: The class 7 science chapter 9 ncert solutions are presented in clear and concise language, making complex concepts more accessible to students.
Diagrams and Illustrations: Wherever necessary, diagrams and illustrations are included to aid visual understanding and enhance clarity in topics related to soil.
Conceptual Clarity: Emphasis is placed on building a strong conceptual foundation, helping students understand the underlying principles of soil formation, types, and importance.
Alignment with CBSE Syllabus: The class 7 soil ncert solutions are designed to align with the CBSE curriculum, ensuring relevance for school exams.
Homework and Exam Preparation: These soil class 7 questions and answers are valuable resources for completing homework assignments and preparing for exams related to the topic of soil.
Improved Understanding: By using these class 7 science ch 9 question answer, students can enhance their understanding of soil science and its various aspects.
Score Enhancement: These science chapter 9 class 7 solutions can help students improve their scores in science exams and build confidence in the subject, particularly in the context of soil.

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