Science & Nature Trivia Questions

60+ science and nature trivia questions with answers — biology, space and physics questions that spark great team debates.

1. 1.What gas do plants absorb from the atmosphere?

   OxygenNitrogenCarbon dioxideHydrogen
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   ✅ Carbon dioxide

2. 2.What is the speed of light approximately?

   300,000 km/s3,000 km/s30,000 km/s3 million km/s
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   ✅ 300,000 km/s

3. 3.Which blood cells fight infection?

   Red blood cellsWhite blood cellsPlateletsPlasma cells
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   ✅ White blood cells

4. 4.What is the hardest natural substance on Earth?

   QuartzSteelDiamondTitanium
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   ✅ Diamond

5. 5.Which animal is the fastest land animal?

   LionCheetahPronghornGreyhound
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   ✅ Cheetah

6. 6.What force keeps planets in orbit?

   MagnetismFrictionGravityInertia
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   ✅ Gravity

7. 7.How many chromosomes do humans typically have?

   42444648
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   ✅ 46

8. 8.What is the study of fossils called?

   ArchaeologyPaleontologyGeologyAnthropology
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   ✅ Paleontology

9. 9.Which planet is known as the Red Planet?

   VenusMarsJupiterMercury
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   ✅ Mars

10. 10.What is the largest organ of the human body?

    LiverBrainSkinLungs
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    ✅ Skin

11. 11.Which bird is famous for its impressive memory and tool use?

    CrowPigeonSparrowChicken
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    ✅ Crow

12. 12.Water boils at what temperature at sea level (Celsius)?

    90°C95°C100°C105°C
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    ✅ 100°C

13. 13.What is the most abundant gas in Earth's atmosphere?

    OxygenCarbon dioxideNitrogenArgon
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    ✅ Nitrogen

14. 14.Which animal never sleeps?

    BullfrogDolphin (one brain half at a time)GiraffeSloth
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    ✅ Dolphin (one brain half at a time)

15. 15.What does DNA stand for?

    Deoxyribonucleic acidDinucleic acidDeoxyribose nuclear acidDual nucleotide array
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    ✅ Deoxyribonucleic acid

16. 16.Which is the largest species of big cat?

    LionTigerJaguarLeopard
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    ✅ Tiger

17. 17.What is the center of an atom called?

    Electron cloudNucleusCore shellProton belt
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    ✅ Nucleus

18. 18.How many legs does a spider have?

    681012
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    ✅ 8

19. 19.Which vitamin do we get from sunlight?

    Vitamin AVitamin B12Vitamin CVitamin D
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    ✅ Vitamin D

20. 20.What is the study of weather called?

    MeteorologySeismologyEcologyAstronomy
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    ✅ Meteorology