NCERT Class 8 Science Chapter 1

1. Which of the following is not a natural resource?
(a) Forests
(b) Fossil Fuels
(c) Air
(d) Cars

Answer

Answer: d) Cars.

2. Which of the following is a biodegradable waste?
(a) Plastic bags
(b) Glass bottles
(c) Fruit peels
(d) Aluminium cans

Answer

Answer: c) Fruit peels

3. Which of the following is not a renewable resource?
(a) Solar Energy
(b) Wind Energy
(c) Fossil Fuels
(d) Hydropower

Answer

Answer: c) Fossil Fuels.

4. What is the full form of CNG?
(a) Compressed Natural Gas
(b) Condensed Natural Gas
(c) Controlled Natural Gas
(d) Carbonated Natural Gas

Answer

Answer: a) Compressed Natural Gas.

5. Which of the following is a non-renewable resource?
(a) Solar Energy
(b) Wind Energy
(c) Coal
(d) Geothermal Energy

Answer

Answer: c) Coal.

6. Which of the following is not a characteristic of living organisms?
(a) Growth
(b) Reproduction
(c) Inanimate
(d) Response to stimuli

Answer

Answer: c) Inanimate.

7. Which of the following is the basic unit of life?
(a) Cell
(b) Tissue
(c) Organ
(d) Organ system

Answer

Answer: a) Cell.

8. Which of the following is not an example of non-living things?
(a) Rocks
(b) Air
(c) Water
(d) Plants

Answer

Answer: d) Plants.

9. The ability of an organism to maintain a constant internal environment is known as:
(a) Growth
(b) Adaptation
(c) Reproduction
(d) Homeostasis

Answer

Answer: d) Homeostasis.

10. Which of the following is not a mode of nutrition in living organisms?
(a) Autotrophic
(b) Heterotrophic
(c) Detritivorous
(d) Inorganic

Answer

Answer: d) Inorganic.

11. Which of the following is a non-living thing?
(a) Plant
(b) Animal
(c) Rock
(d) Fungus

Answer

Answer: c) Rock.

12. Which of the following organisms is a decomposer?
(a) Tiger
(b) Mushroom
(c) Peacock
(d) Peepal tree

Answer

Answer: b) Mushroom.

13. Which of the following is not a component of the environment?
(a) Air
(b) Water
(c) Life
(d) Gravity

Answer

Answer: d) Gravity.

14. Which of the following is an example of a non-living thing?
(a) Virus
(b) Bacteria
(c) Plant
(d) Rock

Answer

Answer:d) Rock

15. The process of conversion of sugar into alcohol is known as:
(a) Fermentation
(b) Digestion
(c) Photosynthesis
(d) Respiration

Answer

Answer:a) Fermentation

16. The smallest unit of life is:
(a) Cell
(b) Tissue
(c) Organ
(d) Organism

Answer

Answer:a) Cell

17.Which of the following is NOT a characteristic of living organisms?
(a) Growth and development
(b) Ability to sense and respond to stimuli
(c) Ability to move from one place to another
(d) Inability to think and reason

Answer

Answer: d) Inability to think and reason.

18. The green pigment present in plant cells that helps in photosynthesis is called:
(a) Chloroplast
(b) Mitochondria
(c) Nucleus
(d) Cytoplasm

Answer

Answer: a) Chloroplast.

19. Which of the following is an example of an abiotic component of an ecosystem?
(a) Plants
(b) Animals
(c) Sunlight
(d) Fungi

Answer

Answer: c) Sunlight.

20. Which of the following is an example of a non-living thing?
(a) Plant
(b) Animal
(c) Rock
(d) Human

Answer

Answer: c) Rock.

21. Which of the following is a characteristic of living things?
(a) They breathe
(b) They grow and develop
(c) They do not respond to stimuli
(d) They do not reproduce

Answer

Answer: b) They grow and develop.

22. Which of the following is a basic structural unit of an organism?
(a) Cell
(b) Tissue
(c) Organ
(d) Organ system

Answer

Answer: a) Cell.

23. Which of the following is a correct sequence of levels of organization in living things?
(a) Tissue, cell, organ, organ system
(b) Cell, tissue, organ, organ system
(c) Organ system, organ, cell, tissue
(d) Organ, tissue, cell, organ system

Answer

Answer: b) Cell, tissue, organ, organ system.

24. Which of the following is an example of a unicellular organism?
(a) Amoeba
(b) Dog
(c) Oak tree
(d) Human

Answer

Answer: a) Amoeba.

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