Class 4 Science MCQs Chapter 2
Updated: 02 Oct 2022
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Welcome to tehkals.com, your go-to destination for Class 4 Science MCQs Chapter 2. Explore our comprehensive collection of Class 4 Science MCQs of Chapter No. 2, focusing on “Ecosystem.”
If you want to succeed and clear your PST, CT, DM, PT, CT, TT, SST, and SS Tests, then our comprehensive MCQs (Multiple Choice Questions) provide the perfect solution by giving the treasure of knowledge and bank of MCQs.
Class 4 Science MCQs Chapter 2
Ecosystem
Chapter No. 2 Test # 1
1. A sum of all living and non-living things around an organism is called _____(a) Organism
(b) Environment
ⓒLiving
(d) Nonliving thing
Show Answer
Environment
2. The living and non – living components of an environment ______ with each other.
(a) Destruct
(b) Interact
(c) Social
(d) None of these
Show Answer
Interact
3. Every living thing lives in a ________ environment.
(a) Particular
(b) Non particular
(c) Forest
(d) Desert
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Particular
4. The living thing and non-living thing component of any environment make
(a) Desert
(b) Forest
(c) Ecosystem
(d) Lake
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Ecosystem
5. The collection of abiotic and biotic components of an environment is called ____________
(a) Desert
(b) Forest
(c) Ecosystem
(d) Lake
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Ecosystem
6. The largest desert of the world is ______.
(a) Cholistan
(b) Thal
(c) Sahara
(d) None of these
Show Answer
Sahara
7. The Sahara Desert is located in the continent ________.
(a) India
(b) America
(c) Australia
(d) Africa
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Africa
8. The desert located in Mianwali and Bhakkar in Pakistan is called ______
(a) Cholistan
(b) Thal
(c) Sahara
(d) None of these
Show Answer
Thal
9. Thal desert is located in _____
(a) Mianwali
(b) Bhakkar
(c) Both a & b
(d) None of these
Show Answer
Both a & b
10. The desert located in southern parts of Punjab is called ________
(a) Cholistan
(b) Thal
(c) Sahara
(d) None of these
Show Answer
Cholistan
11. The desert located in Sindh is called __________.
(a) Cholistan
(b) Thal
(c) Sahara
(d) Thar
Show Answer
Thar
12. The component of ecosystem is/are.
(a) Biotic
(b) Abiotic
(c) Both a & b
(d) None of these
Show Answer
Both a & b
13. The non-living component of an ecosystem is called _______ components.
(a) Biotic
(b) Abiotic
(c) Both a & b
(d) None of these
Show Answer
Abiotic
14. Temperature, air, water, light and soil are called _________ components of an ecosystem.
(a) Biotic
(b) Abiotic
(c) Both a & b
(d) None of these
Show Answer
Abiotic
15. An example of abiotic components of an environment are
(a) Soil
(b) Temperature
(c) Air
(d) All of these
Show Answer
All of these
16. Which of the following is not an abiotic component of an environment
(a) Plants
(b) Air
(c) Water
(d) Light
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Plants
17. Which of the following as a biotic component of ecosystem?
(a) Water
(b) Air
(c) Fire
(d) Plants
Show Answer
Plants
18. Sunlight is abiotic component of the environment like
(a) Temperature
(b) Herbivores
(c) Plants
(d) Mammals
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Temperature
19. Which of the following is the living component of an environment?
(a) Table
(b) Plants
(c) Pen
(d) All of these
Show Answer
Plants
20. Which of the following is the non-living component of an environment?
(a) Hen
(b) Plants
(c) Sunlight
(d) Birds
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Sunlight
21. Anabiotic component of an ecosystem is
(a) Micro organisms
(b) Animals
(c) Plants
(d) water
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water
22. The living component of an ecosystem are called _________ component.
(a) Biotic
(b) Abiotic
(c) Both a & b
(d) None of these
Show Answer
Biotic
Chapter No. 2 Test # 2
23. Biotic components are divided into _______ groups.(a) Three
(b) Four
(c) Five
(d) Six
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24. The biotic component of an ecosystem is divided into_________ groups.
(a) Producers
(b) Consumers
(c) Decomposer
(d) All of these
Show Answer
All of these
25. The ______ produce food for themselves and for animals with the help of absorbed water and sunlight.
(a) Animals
(b) Consumer
(c) Plant
(d) None of these
Show Answer
Plant
26. The plants produce food for themselves and for animals with the help of
(a) Sunlight
(b) Absorbed water
(c) Both a & b
(d) None of these
Show Answer
Both a & b
27. As the plant produce food for them and for animal, so plants are called
(a) Producers
(b) Consumers
(c) Decomposer
(d) All of these
Show Answer
Producers
28. Herbs, climbers, shrubs and trees are ________
(a) Producers
(b) Consumers
(c) Decomposer
(d) All of these
Show Answer
Producers
29. _______ aquatic plants are produces.
(a) Lotus
(b) Algae
(c) Both a & b
(d) None of these
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Both a & b
30. Lotus, algae are the major source of food for the _______ animals
(a) In aquatic
(b) Aquatic
(c) Desert
(d) Land
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Aquatic
31. Algae are __________.
(a) Producers
(b) Consumers
(c) Decomposer
(d) All of these
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Producers
32. The living things which obtain their food from other living thing are called.
(a) Producers
(b) Consumers
(c) Decomposer
(d) All of these
Show Answer
Consumers
33. _______ cannot make their own food.
(a) Producers
(b) Consumers
(c) Decomposer
(d) All of these
Show Answer
Consumers
34. Consumers _______ make their own food.
(a) Can
(b) Cannot
(c) Bath a & b
(d) None of these 35. Consumers depend on __________ for their food.
(a) Animals
(b) Plants
(c) Both a & b
(d) None of these
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Cannot
36. All the animals are ___________.
(a) Producers
(b) Consumers
(c) Decomposer
(d) All of these
Show Answer
Consumers
37. The living thing which breakdown the dead bodies of plants and animals into simple components for their food from these are called __________.
(a) Producers
(b) Consumers
(c) Decomposer
(d) All of these
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Decomposer
38. Among living organisms bacteria are:
(a) Producer
(b) Consumer
(c) Viruses
(d) Decomposers
Show Answer
Decomposers
39. Fungi are an example of ________
(a) Producer
(b) Consumer
(c) Viruses
(d) Decomposers
Show Answer
Decomposers
40 Which of the following organisms are decomposers?
(a) All plants
(b) Lions
(c) Rats
(d) Bacteria and fungi
Show Answer
Bacteria and fungi
41. Bacteria and fungi are _________.
(a) Producers
(b) Consumers
(c) Decomposer
(d) All of these
Show Answer
Decomposer
Chapter No. 2 Test # 3
42. Corals look like stone but actually these are _________.(a) Plants
(b) Animals
(c) Stone
(d) Rock
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Animals
43. _______ are animals.
(a) Algae
(b) Lotus
(c) Corals
(d) Both a & b
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Corals
44. Corals are a part of beautiful ecosystem under ________
(a) Ground
(b) Desert
(c) Rock
(d) Sea
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Sea
45. Corals usually live in form of colony which is called ________.
(a) Coral land
(b) Coral colony
(c) Coral ocean
(d) Coral reef
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Coral reef
46. ________ are also called rainforests of the ocean.
(a) Coral
(b) Algae
(c) Lotus
(d) Bacteria
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Coral
47. Corals are also called ________ of the ocean.
(a) Rainforests
(b) Land forests
(c) Ocean forests
(d) None of these
Show Answer
Rainforests
48. Corals are look like _______ but actually these are animals.
(a) Stones
(b) Trees
(c) Dolphin
(d) Star fish
Show Answer
Stones
49. The sun is the main source of energy in a/an _______.
(a) Electric system
(b) Water
(c) Ecosystem
(d) None of these
Show Answer
Ecosystem
50. The plants make food with the help of :
(a) Sunlight
(b) Carbon dioxide
(c) Water
(d) All of these
Show Answer
All of these
51. Plants produce ______ during photosynthesis.
(a) Oxygen
(b) Carbon dioxide
(c) Hydrogen
(d) All of these
Show Answer
Oxygen
52. During respiration animals produce ___________.
(a) Oxygen
(b) Carbon dioxide
(c) Hydrogen
(d) All of these
Show Answer
Carbon dioxide
53. Animals produce_______ which is used by plants to make food.
(a) Oxygen
(b) Carbon dioxide
(c) Hydrogen
(d) All of these
Show Answer
Carbon dioxide
54. The self-sustaining and durable ecosystem is called _________ecosystem.
(a) Chain
(b) Balance
(c) Large
(d) Small
Show Answer
Balance
55. If the number of the aquatic producers increases in a pond beyond the limit, then fish and other living thing will die due to lack of _________.
(a) Oxygen
(b) Carbon dioxide
(c) Hydrogen
(d) All of these
Show Answer
Oxygen
56. The animals which eat plants are called ______
(a) Herbivores
(b) Carnivores
(c) Omnivores
(d) None of these
Show Answer
Herbivores
57. The animals which eat other animals are called _________
(a) Herbivores
(b) Carnivores
(c) Omnivores
(d) None of these
Show Answer
Carnivores
58. The animals which eat both plants and animals are called ______
(a) Herbivores
(b) Carnivores
(c) Omnivores
(d) None of these
Show Answer
Omnivores
59. Producers _______ make food.
(a) Can
(b) Cannot
(c) Finish his food
(d) None of these
Show Answer
Can
60 The series of eating and being eaten in an ecosystem is called __________.
(a) Balance diet
(b) Food chain
(c) Carnivores
(d) Herbivores
Show Answer
Food chain
61. Which of the following shows the correct food chain in an environment?
(a) Sun→Consumers→Producers→Decomposers
(b) Sun→Consumers→Producers→Decomposers
(c)Sun→Producers→Decomposers→Consumers
(d) Sun→Producers→Consumers→Decomposers
Show Answer
Sun→Producers→Consumers→Decomposers
62. In any food chain the first living thing is a ________.
(a) Producers
(b) Consumers
(c) Decomposer
(d) All of these
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Producers
63. In any food chain the ________ living thing is herbivores.
(a) First
(b) Second
(c) Third
(d) Fourth
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Second
64. In any food chain the third living thing is a ___________.
(a) Herbivores
(b) Carnivores
(c) Omnivores
(d) None of these
Show Answer
Carnivores
65. In the following food chain
Sunlight→Grass→Rabbit→Lion, the relation of loin to rabbit is an example of:
(a) Predation
(b) Parasitism
(c) Mutualism
(d) Production
Show Answer
Predation
66. Every food chain begins at a _______ and ends at an animal.
(a) Producers
(b) Consumers
(c) Decomposer
(d) None of these
Show Answer
Producers
Chapter No. 2 Test # 4
67. The animals which eat by killing another living thing is called __________.(a) Predator
(b) Prey
(c) Omnivores
(d) None of these
Show Answer
Predator
68. When a loin hunts the zebra, the loin is called ________
(a) Predator
(b) Prey
(c) Omnivores
(d) None of these
Show Answer
Predator
69. When a loin hunts the deer, the deer is called
(a) Predator
(b) Prey
(c) Omnivores
(d) None of these
Show Answer
Prey
70. The living thing which is killed and eaten by the predator is called a ____.
(a) Predator
(b) Prey
(c) Omnivores
(d) None of these
Show Answer
Prey
71. The interaction between predator and prey is called _________.
(a) Prestation
(b) Predation
(c) Omnivores
(d) Carnivores
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Predation
72. “Deer is killed by lion”, here lion is the predator and deer is _________.
(a) Predator
(b) Prey
(c) Omnivores
(d) None of these
Show Answer
Prey
73. The grass is ______ for goat.
(a) Predator
(b) Prey
(c) Omnivores
(d) None of these
Show Answer
Prey
74. The goat is _______ because it eats grass.
(a) Predator
(b) Prey
(c) Omnivores
(d) None of these
Show Answer
Predator
75. Humans have caused _______ damage to the environment.
(a) Reversible
(b) Irreversible
(c) No
(d) None of these
Show Answer
Irreversible
76. World earth day is celebrated around the world on.
(a) 22ndMay
(b) 22ndFebruary
(c) 22ndJuly
(d) 22nd April
Show Answer
22nd April
77. Plantation day is celebrated in _________ as “week of tree plantation”.
(a) February
(b) March
(c) July
(d) August
Show Answer
August
78. What is an ecosystem?
(a) System of non-living things in an environment
(b) Area having a group of living and dead things
(c) System of living things in an environment
(d) The collection of abiotic and biotic components in an area.
Show Answer
The collection of abiotic and biotic components in an area.
79. All the biotic component are:
(a) Animals
(b) Producers
(c) Living things
(d) Non-living things
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Living things
80 For the conservation of ecosystem:
(a) Forests are being cut
(b) Roads are being built
(c) Tree plantation is being done
(d) Factories are being installed
Show Answer
Tree plantation is being done
81. Fungus is an example of:
(a) Producer
(b) Consumer
(c) Decomposer
(d) All of these
Show Answer
Decomposer
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