Class 7 Science Chapter 12 MCQ (Multiple Choice Questions) of Forests: Our Lifeline with explanation and answers of each questions updated for academic session 2024-25. All the MCQ tests are prepared from latest NCERT Textbooks based on new CBSE Syllabus. These MCQ online tests are important for school unit test as well as terminal or final exams. Class 7 science chapter 12 MCQs cover all the concepts of the chapter.

Class 7 Science Chapter 12 MCQ for 2024-25

Class: 7Science
Chapter: 17Forests: Our Lifeline
Contents: MCQ Online Tests With Answers

MCQ Tests with Answers for Class 7 Science Chapter 17

Q1

Which of the following serve as green lungs?

[A]. Green pigment of the plants
[B]. Forests
[C]. Kitchen Gardens
[D]. Greenhouses gases
Q2

Which among the following forest animal is the smallest?

[A]. Fox
[B]. Boar
[C]. Bison
[D]. Porcupine
Q3

Which of the following is not a forest product?

[A]. Gum
[B]. Plywood
[C]. Sealing wax
[D]. Kerosene
Q4

Which of the following has the strongest stem?

[A]. A tree
[B]. A creeper
[C]. A climber
[D]. A bush
Q5

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

[A]. A forest acts as the purifier of air and water.
[B]. The forest provides a home for many plants’ animals and decomposers organisms.
[C]. The forest also contains decomposers organisms such as bacteria and fungi.
[D]. None of the above.
Q6

Which of the following is not prepared from the wood obtained from forest?

[A]. Paper
[B]. Thermocol
[C]. Matchsticks
[D]. Plywood
Q7

Which of the following is not the name of a tree?

[A]. Teak
[B]. Sal
[C]. Porcupine
[D]. Kachnar
Q8

Pick the option which gives the names of a tree and animal respectively from the following:

[A]. Semal and hornbill
[B]. Sal and khair
[C]. Chinkara and blue bull
[D]. Neem and palash
Q9

Which of the products is not obtained from a forest?

[A]. Honey
[B]. Catechu
[C]. Gum
[D]. Ginger
Q10

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

[A]. The green plants provide food to all the animals in the forest, directly or indirectly.
[B]. The decomposers play a very important role in sustaining the forest.
[C]. Bacteria and fungi are non-green organisms which can not make their own food.
[D]. All the above.
Q11

One of the following is not produced by the action of decomposers on the dead parts of plants and dead bodies of animals. This one is:

[A]. Carbon di oxide
[B]. Oxygen
[C]. Water
[D]. Nutrients
Q12

Forests are not responsible for:

[A]. Providing medicinal plants
[B]. Maintaining the flow of water into the streams
[C]. Creating for flood conditions
[D]. Absorbing rainwater and maintaining water table
Q13

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

[A]. Those animals which eat dead animals’ are called scavengers.
[B]. Scavengers eat up the dead bodies of animals and a help in keeping forest environment clean.
[C]. The important of humus to the soil is that it provides nutrients for the growth plants.
[D]. None of the above.
Q14

Which of the following is not a function of the forests?

[A]. Maintenance of water cycle
[B]. Bringing sufficient rains
[C]. Preventing flash floods
[D]. Causing soil erosion
Q15

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

[A]. The various components of a forest are interdependent on one another.
[B]. An ecosystem is a self-sufficient unit of living things and non-living environment needing only the input of sunlight energy for its functioning
[C]. If we remove all the snakes from a forest then all the food chains in which snakes take part will be broken or affected.
[D]. All the above.
Q16

Which of the following is not a function of the crowns of forest trees during the daytime?

[A]. Absorb sun’s light energy
[B]. Absorb oxygen from air
[C]. Carry out photosynthesis
[D]. From a green cover
Q17

Which of the following do not help the flowering plants of a forest in pollination?

[A]. Honeybees
[B]. Butterflies
[C]. Kingfishers
[D]. Antelopes
Q18

Which of the following statement is or are correct?

[A]. The layer of vegetation in a forest which is just below the understorey, is called shrub layer.
[B]. The layer of vegetation in the forest which is just below the shrub layer, is called the herb layer.
[C]. The forest floor is also considered a layer of vegetation in the forest structure.
[D]. All the above.
Q19

If forests disappear:

[A]. Amount of CO2 in air will increase.
[B]. Amount of CO2in air will decrease.
[C]. Amount of O2in air will increase
[D]. Amount of N2 in air will increase
Q20

State whether the following statements are true or false:

[A]. Forest protects the soil from erosion.
[B]. Forest influence climate, water cycle and air quality.
[C]. The forest keeps on growing and changing and can regenerate.
[D]. In a forest, trees form the uppermost layer, followed by herbs and the shrubs form the lowest layer of vegetation.
Q21

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

[A]. Scavengers are also a type of decomposers.
[B]. Dead animals and plants are the polluted agent of forest.
[C]. The growing of new trees and plants on their own regenerates the forest naturally.
[D]. As a scavenger lion eat up the dead bodies of animals and help in keeping forest environment clean.
Q22

Boojho appeared in class test but he confused to know the correct statement. Would you help him to know that?

[A]. Forests are cut down to obtain wood for making paper.
[B]. Forests are cut down to clear land for cultivation of crops in agriculture.
[C]. Forests are cut down to clear land for the construction of roads, houses, industries and dams etc.
[D]. All the above.
Q23

Puja is writing some statements but she confused to know whether the statements are correct or not? If you know the answer to this question, then tell her:

[A]. Forests prevent soil erosion and floods and hence help in the conservation of soil.
[B]. Forests help in maintain water cycle in nature and hence bring sufficient rain.
[C]. Forests also maintain the balance between carbon di oxide and oxygen in the atmosphere.
[D]. None of the above.
Q24

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

[A]. The cutting down of forest leads to soil erosion.
[B]. Cutting down of forest leads to the loss of many species of animals and birds.
[C]. The destruction of forests is also leading to the loss of many species of plants from this earth.
[D]. All the above
Q25

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

[A]. The various things which are obtained from the forest are called forest products.
[B]. The green plants and trees of the forest release oxygen during the process of photosynthesis.
[C]. Humus mixes up with the soil in the forest and the nutrients present in it are used for the growth of plants.
[D]. Green plants and trees of the forest supply oxygen for breathing and respiration, so forests are known as blue lungs.

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Last Edited: June 13, 2023