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Chapters
2: Nutrition in Animals
3: Fibre to Fabric
4: Heat
5: Acids, Bases and Salts
6: Physical and Chemical Changes
7: Weather, Climate and Adaptation of Animals to Climate
8: Wind, Storm and Cyclone
▶ 9: Soil
10: Respiration in Organisms
11: Transportation in Animals and Plants
12: Reproduction in Plants
13: Motion and Time
14: Electric Current and Its Effects
15: Light
16: Water : A Precious Resource
17: Forests : Our Lifeline
18: Wastewater Story
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Solutions for Chapter 9: Soil
Below listed, you can find solutions for Chapter 9 of CBSE NCERT Exemplar for Science [English] Class 7.
NCERT Exemplar solutions for Science [English] Class 7 9 Soil MULTIPLE CHOICE QUESTIONS [Page 47]
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.
Desert
Forest
Open field
Cricket ground
Sometimes when we do heavy exercise, anaerobic respiration takes place in our muscle cells. What is produced during this process?
alcohol and lactic acid
alcohol and CO2
lactic acid and CO2
lactic acid only
Availability of water and minerals in the soil for maximum absorption by roots is in the
B-horizon
C-horizon
A-horizon
surface of soil
Soil conservation measures are mainly aimed at protecting one of the following?
Plants
Topsoil
Subsoil
Soil organisms
Read the following statements with reference to the soil.
(i) Weathering is a very fast process of soil formation.
(ii) Percolation of water is faster in sandy soils.
(iii) Loamy soil contains only sand and clay.
(iv) Topsoil contains the maximum amount of humus.
Choose the correct statements from the above.
(ii) and (iv)
(i) and (iii)
(ii) and (iii)
(i) and (ii)
NCERT Exemplar solutions for Science [English] Class 7 9 Soil VERY SHORT ANSWER QUESTIONS [Page 48]
Soil has particles of different sizes. Arrange the words given below in increasing order of their particle size.
Rock, Clay, Sand, Gravel, Silt
The components of loamy soil are ______, ______ and ______.
Read the following statement and give the appropriate terms for each of them.
The process of breakdown of rocks by the action of wind, water, and sunlight.
Read the following statement and give the appropriate terms for each of them.
Removal of topsoil during heavy rains or strong winds.
Read the following statement and give the appropriate terms for each of them.
Accumulation of wastes in the soil generated by human activity alters the features of the soil.
Read the following statement and give the appropriate terms for each of them.
The process of movement of water into deeper layers of soil.
Unscramble the following jumbled word related to soil.
Unscramble the following jumbled word related to soil.
Unscramble the following jumbled word related to soil.
Unscramble the following jumbled word related to soil.
Unscramble the following jumbled word related to soil.
Unscramble the following jumbled word related to soil.
NCERT Exemplar solutions for Science [English] Class 7 9 Soil SHORT ANSWER QUESTIONS [Pages 48 - 50]
Which of the following situations – ‘A’ or ‘B’ – is advantageous for the 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.
How can a farmer convert acidic soil to neutral soil?
Is it a good practice to remove grass and small plants that are growing in an open, unused field? Give a reason to support your answer.
A man digging a pit found that he could dig with ease initially but digging became difficult as he went deeper. He could not dig beyond a depth of 5 feet. Provide a suitable scientific explanation.
Locate the following zones given as boxed items in Figure 9.1 which shows a diagram of the soil profile.
Topsoil, Subsoil, C-horizon, Bedrock
Rajasthan is a desert state in India. Once while travelling to Rajasthan by train, Boojho observed several streams and rivulets of rainwater during the journey but to his surprise, he did not see streams of water in the desert region even during rains. Help Boojho find a suitable explanation for this.
Match the animals in Column I with their natural place of dwelling (habitat) in Column II.
Column I | Column II | ||
(a) | Earthworm | (i) | Sand and beaches |
(b) | Garden lizard | (ii) | Burrows in soil |
(c) | Crab | (iii) | Deep, narrow holes in dry soils |
(d) | Rodents | (iv) | Surface of soil |
(e) | Scorpion | (v) | The surface of shaded moist soils |
(f) | Snails and slugs | (vi) | A horizon of moist soils |
NCERT Exemplar solutions for Science [English] Class 7 9 Soil LONG ANSWER QUESTIONS [Page 50]
Continuously water-logged soils are disadvantageous for plant growth. Why?
Why is soil erosion relatively less in dense forests as compared to barren, open fields?
Gardeners gently dig up the soil around the roots of garden herbs (plants) frequently. Give reasons.
In towns and cities, generally, the bore wells have to be dug very deep to get water as compared to bore wells dug in villages. Give suitable reasons.
Several terms related to soil are hidden in the squares given in Figure 9.2. Spot them and make a list. Two examples are given for you.
Solutions for 9: Soil
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NCERT Exemplar solutions for Science [English] Class 7 chapter 9 - Soil
Shaalaa.com has the CBSE Mathematics Science [English] Class 7 CBSE solutions in a manner that help students grasp basic concepts better and faster. The detailed, step-by-step solutions will help you understand the concepts better and clarify any confusion. NCERT Exemplar solutions for Mathematics Science [English] Class 7 CBSE 9 (Soil) include all questions with answers and detailed explanations. This will clear students' doubts about questions and improve their application skills while preparing for board exams.
Further, we at Shaalaa.com provide such solutions so students can prepare for written exams. NCERT Exemplar textbook solutions can be a core help for self-study and provide excellent self-help guidance for students.
Concepts covered in Science [English] Class 7 chapter 9 Soil are Soil Profile, Types of Soil, Moisture in Soil, Soil and Crops, Properties of Soil, Water Retention in Soil.
Using NCERT Exemplar Science [English] Class 7 solutions Soil exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in NCERT Exemplar Solutions are essential questions that can be asked in the final exam. Maximum CBSE Science [English] Class 7 students prefer NCERT Exemplar Textbook Solutions to score more in exams.
Get the free view of Chapter 9, Soil Science [English] Class 7 additional questions for Mathematics Science [English] Class 7 CBSE, and you can use Shaalaa.com to keep it handy for your exam preparation.