Class 7 Science Chapter 9 MCQ

Class 7 Science Chapter 9 MCQ (Multiple Choice Questions) of Soil. All the MCQ objective questions are given here with suitable answers and explanation of answers. Contents are updated for academic session 2021-2022.

Important questions and MCQ collectively provide a perfect revision of the chapter for a standard 7 students. Practice here with MCQ to score good marks in exams and clear your doubts.

Class 7 Science Chapter 9 MCQ for 2021-2022

Class: 7Science
Chapter: 9Soil
Contents: MCQ Objective Questions with Answers

MCQ Tests with Answers for Class 7 Science Chapter 9

Q1

Consider the following statements and choose the incorrect one:

[A]. Soil is used to make earthenware or pottery.
[B]. Soil is used to make bricks and mortar for building houses.
[C]. Soil is used to grow only cotton plants.
[D]. Soil is used to grow trees for obtaining wood, fruits etc.
Q2

The microorganisms present in the soil require moisture or water and nutrients for growth and survival. Choose from the options below, the habitat or place where the soil has plenty of water and nutrients:

[A]. Desert
[B]. Forest
[C]. Open field
[D]. Cricket ground
Q3

Priya is writing some statements, choose the incorrect statement and help her:

[A]. Weathering of rocks is a very fast process.
[B]. Humus contains nutrients like nitrogen and phosphorus, which are needed by the plant for their growth.
[C]. Vertical section through the soil showing the different layers of soil is called soil profile.
[D]. None of the above.
Q4

Which of the following statement is or are correct?

[A]. The top layer of soil is called A-horizon.
[B]. The top layer of soil contains a lot of humus.
[C]. The top soil is soft, porous and fertile and can hold more of water.
[D]. All the above
Q5

Bikash is doing his homework which is given by his teacher. Would you help him to choose the incorrect sentences?

[A]. Clayey soil contains mainly clay having very small particles with very small spaces.
[B]. Clayey soil also contains very little humus.
[C]. Clayey soil has very good water holding capacity due to its very small and tightly packed particles.
[D]. Clayey soil is more fertile than loamy soil.




Q6

Payel is completed her science chapter where she wrote some statements. She wants to know whether the statements are correct or not? Payel wants to take help from you:

[A]. The layer of soil which is just below the topsoil is called B-horizon.
[B]. The sub-soil is made up of slightly bigger rock particles than that of top-soil.
[C]. The sub-soil is much fertile as compared to the top-soil.
[D]. None of the above.
Q7

Read the following sentences carefully, and choose the incorrect one:

[A]. The layer of soil which is just below the sub-soil is called C-horizon.
[B]. Substratum is made up of small lumps of broken rocks or stones.
[C]. The substratum part of soil, the rock pieces are still breaking down to form smaller and smaller particles.
[D]. None of the above.
Q8

Paheli wants to see the soil profile at a place. Bujhoo told different situation to her. Choose the incorrect situation told by him:

[A]. Soil profile can be seen at the sides of a road on the hill or river bank.
[B]. Soil profile can be seen while digging a well or foundation of a building.
[C]. Soil profile can be seen by looking at the sides of a recently dug trench or ditch.
[D]. None of the above.
Q9

Consider the following statements and choose the incorrect one:

[A]. If the soil contains greater proportion of big particles, it is called sandy soil.
[B]. If the soil contains greater proportion of fine particles, it is called clayey soil.
[C]. If the soil contains about the same proportion of large and fine particles, then it is called loamy soil.
[D]. None of the above.
Q10

In the last year board examination, Rahul were asked a question where he had to choose the statement which was/were incorrect? Will you be able to answer this question?

[A]. The largest sized rock particles present in the soil are called sand.
[B]. The rock particles in soil which are larger than silt particles form sand.
[C]. The rock particles in soil which are a little larger than clay particles from silt.
[D]. The smallest rock particles present in the soil form clay.



Q11

Which of the following statement is or are correct?

[A]. In a good top-soil, gravel is present in very small amount.
[B]. The main rock particles present in the top-soil are sand, clay and silt.
[C]. The most important part of soil for us is the top-soil.
[D]. All the above.
Q12

Which of the following present in soil has the smallest size of particles?

[A]. Gravel
[B]. Silt
[C]. Clay
[D]. Sand
Q13

In a quiz competition, you are asked a question where you have to choose the statement which is/ are incorrect?

[A]. Sandy soil contains mainly sand, having large particles with large spaces.
[B]. Sandy soil contains very little humus.
[C]. Sandy soil is found in desert areas.
[D]. A disadvantage of sandy soil is that it can hold much water.
Q14

200 grams of a soil is taken and dried completely in bright sunshine. The mass of dried soil is found to be 170 grams. Calculate the percentage of water or moisture present in the given sample of the soil.

[A]. 30 percent
[B]. 15 percent
[C]. 40 percent
[D]. 25 percent
Q15

Priya is writing some statements, choose the incorrect statement and help her:

[A]. For growing masoor dal for other pulses, loamy soil which drains water easily, is required.
[B]. For growing cotton crop, “sandy loam soil” which drains water easily and can hold plenty of air in it, is most suitable.
[C]. Sandy soil is loose, light and non-sticky whereas clayey soil is compact, heavy and sticky.
[D]. None of the above



Q16

In a science quiz competition, Payel are asked a question where she had to choose the statement which was/were incorrect?

[A]. The removal of fertile top-soil from land by wind or water is called soil erosion.
[B]. Soil erosion is caused mainly by the large scale cutting down of forest trees.
[C]. Soil erosion can turn lush green forest into deserts and spoil the environment.
[D]. Soil erosion is not directly or indirectly related to floods.
Q17

Consider the following statements and choose the incorrect one:

[A]. Soil erosion can lead to famines or excessive scarcity of food.
[B]. The formula of percolation rate of water equals to volume of water percolated over time taken for percolation.
[C]. The organic matter formed by the decomposition of dead plants and animals by the microorganisms is called humus.
[D]. Soil erosion can be prevented by large scale cutting down of forest trees.
Q18

The process by which huge rocks are broken down into small particles by the action of sun’s heat, wind, rain and flowing water, etc., is called:

[A]. [A] Weathering
[B]. Erosion
[C]. Corrosion
[D]. Smothering
Q19

Choose the statement which is the not related to soil pollution:

[A]. The use of pesticides in agriculture causes soil pollution.
[B]. Acid rain causes soil pollution.
[C]. Dumping of Industrial waste is cause soil pollution.
[D]. None of the above
Q20

We cannot see streams of water in the desert region even during rains. Possible reasons may be:

[A]. In desert, sandy soil contains very little humus.
[B]. The desert receives almost no rainfall throughout the year.
[C]. Sandy soil is light, so it has a tendency to below away by the air.
[D]. None of the above.




Q21

Which of the following cannot prevent soil erosion?

[A]. Reforestation
[B]. Deforestation
[C]. Silviculture
[D]. Plantation
Q22

Read the following sentences carefully, and choose the correct one(s):

[A]. Loamy soil is most fertile soil.
[B]. Loamy soil contains sufficient amount of humus.
[C]. Loamy soil is a mixture of sand, clay, silt and humus in the right proportion.
[D]. All the above
Q23

Bikash is doing his homework which is given by his teacher. Would you help him to choose the incorrect sentences?

[A]. A farmer can convert acidic soil into neutral soil by adding a small quantity of quicklime to the soil.
[B]. It is a good practice to remove grass and small plants that are growing in an open, unused field.
[C]. The streams of water in desert region are not visible even during rainy seasons.
[D]. None of the above.
Q24

Water percolating into the soil collects over:

[A]. A-horizon
[B]. B-horizon
[C]. C-horizon
[D]. None of these
Q25

Read the following statements with reference to soil and choose the correct statements from the given below:

[A]. Percolation of water is faster in sandy soils and top soil contains the maximum amount of humus.
[B]. Weathering is a very fast process of soil formation and loamy soil contains only sand and clay.
[C]. Percolation of water is faster in sandy soils and loamy soil contains only sand and clay.
[D]. Weathering is a very fast process of soil formation and percolation of water is faster in sandy soils.

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