Updated on June 13, 2023
by Tiwari Academy
by Tiwari Academy
Class 7 Science Chapter 12 MCQ (Multiple Choice Questions) of Forests: Our Lifeline with explanation and answers of each questions updated for academic session 2025-26. 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 2025-26
| Class: 7 | Science |
| Chapter: 17 | Forests: 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
Consider the following statements and choose the correct one:
[A]. A forest is a large area of land covered mainly with trees and other plants.
[B]. Due to different climates and soils, there are various types of trees and other plants found in various forests.
[C]. The forest floor provides favorable conditions for seeds to germinate into seedlings and saplings.
[D]. All the above.
Q3
Which among the following forest animal is the smallest?
[A]. Fox
[B]. Boar
[C]. Bison
[D]. Porcupine
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 statements is not correct?
[A]. Forests protect the soil from erosion
[B]. Plants and animals in a forest are not dependent on one another
[C]. Forests influence the climate and water cycle
[D]. Soil helps forests to grow and regenerate
Q7
Which of the following is not the name of a tree?
[A]. Teak
[B]. Sal
[C]. Porcupine
[D]. Kachnar
Q8
Consider the following statements and choose the incorrect one:
[A]. The plants are called producers.
[B]. The animals are called consumers.
[C]. Saprotrophs are commonly known as decomposers.
[D]. None of the above.
Q9
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
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
The branchy part of a tree above the stem is known as:
[A]. Crown
[B]. Canopy
[C]. Sapling
[D]. Humus
Q12
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.
Q13
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
Q14
Which of the following is not a scavenger?
[A]. Crow
[B]. Jackal
[C]. Lion
[D]. Vulture
Q15
Read the following sentences carefully, and choose the incorrect one:
[A]. The first step in every food chain is the plants.
[B]. The second step in a food chain is always a herbivore
[C]. The third step in a food chain is always a carnivore.
[D]. Scavengers are referred as decomposers.
Q16
In a science quiz competition, Payel are asked a question where she had to choose the statement which was/were incorrect?
[A]. The branchy part of a tree above the stem is known as the crown of the tree.
[B]. The layer of vegetation in a forest which is just below the canopy is called under story.
[C]. The uppermost branches and leaves of tall trees which act like a roof over the forest ground is called canopy.
[D]. None of the above.
Q17
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
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
Consider the following statements and choose the incorrect one:
[A]. Destruction of forests can change the earth’s climate.
[B]. Destruction of forests leads to the extinction of many wild animals and plants.
[C]. Destruction of forests affects the water cycle leading to reduction in rainfall.
[D]. Destruction of forests will prevent flooding of rivers, loss of life and property.
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 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]. [A] Forests help in cleaning air and purifying water.
[B]. Forests provide food, water, shelter and medicine to the forest-dwelling people.
[C]. Forests provide a natural habitat to wild animals and birds and hence help in the conservation of wildlife.
[D]. Cutting down of forests is driving out many populations, which help many people to build houses, factories and bridge etc.
Q25
Recently, in a science class test, you are asked a question where you have to say whether the statements are correct or not?
[A]. The cutting down of forest or deforestation leads to a decrease in rainfall.
[B]. The removal of fertile top soil from a region by wind, rain or river water is called soil erosion.
[C]. The roots of trees and plants growing in the forest bind the particles of topsoil and hold the soil together firmly.
[D]. None of the above.
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Last Edited: June 13, 2023
