Test your knowledge of our planet with our captivating GK Quiz on Earth.

Discover fascinating facts about the Earth’s structure, atmosphere, oceans, geography, and natural phenomena.

Challenge yourself with 30 thought-provoking questions and explore the wonders of our home planet.

Put your Earth knowledge to the test and see how much you truly know about the world beneath our feet!

GK Quiz on Earth

1. What is the approximate diameter of Earth?
a) 6,000 kilometers
b) 8,000 kilometers
c) 10,000 kilometers
d) 12,000 kilometers

2. Which layer of the Earth’s atmosphere is responsible for weather phenomena?
a) Troposphere
b) Stratosphere
c) Mesosphere
d) Thermosphere

3. Which is the largest ocean on Earth?
a) Indian Ocean
b) Atlantic Ocean
c) Arctic Ocean
d) Pacific Ocean

4. What percentage of the Earth’s surface is covered by water?
a) Approximately 30%
b) Approximately 50%
c) Approximately 70%
d) Approximately 90%

5. The Himalayan mountain range is located on which continent?
a) Asia
b) Europe
c) South America
d) Africa

6. What is the outermost layer of the Earth called?
a) Mantle
b) Crust
c) Core
d) Lithosphere

7. Which natural satellite orbits the Earth?
a) Mars
b) The Moon
c) Venus
d) Jupiter

8. What is the name of the deepest known point in the Earth’s oceans?
a) Mariana Trench
b) Puerto Rico Trench
c) Sunda Trench
d) Java Trench

9. The process by which plants absorb water through their roots and release water vapor through their leaves is called:
a) Photosynthesis
b) Condensation
c) Transpiration
d) Respiration

10. Which gas makes up the majority of Earth’s atmosphere?
a) Oxygen
b) Nitrogen
c) Carbon Dioxide
d) Hydrogen

11. Which phenomenon is responsible for the Earth’s magnetic field?
a) Core Convection
b) Solar Flares
c) Lunar Gravitational Pull
d) Volcanic Activity

12. What is the highest mountain on Earth?
a) Mount Kilimanjaro
b) Mount Everest
c) Mount McKinley (Denali)
d) Mount Fuji

13. Which layer of the Earth is composed of semi-solid molten rock?
a) Mantle
b) Outer Core
c) Inner Core
d) Crust

14. The Earth’s rotation on its axis causes:
a) Day and Night
b) Seasons
c) Tides
d) Earthquakes

15. What causes the phenomenon of the Northern Lights (Aurora Borealis)?
a) Solar Winds interacting with the Earth’s magnetic field
b) Volcanic Activity
c) Reflection of Sunlight by ice crystals
d) Movement of tectonic plates

16. Which continent is entirely located in the Southern Hemisphere?
a) Africa
b) North America
c) Europe
d) Australia

17. The Great Barrier Reef, the largest coral reef system, is situated off the coast of which country?
a) Brazil
b) Australia
c) India
d) Indonesia

18. What is the primary source of energy for the Earth’s climate and weather?
a) Wind
b) Geothermal energy
c) Solar radiation
d) Tidal energy

19. Which continent is known as the “White Continent” due to its extensive ice cover?
a) Antarctica
b) Asia
c) Europe
d) North America

20. The Earth is tilted on its axis at an angle of approximately:
a) 23.5 degrees
b) 45 degrees
c) 60 degrees
d) 90 degrees

21. The process of breaking down rocks into smaller particles by wind, water, or other natural agents is known as:
a) Erosion
b) Weathering
c) Sedimentation
d) Deposition

22. The ozone layer is located in which layer of the Earth’s atmosphere?
a) Troposphere
b) Stratosphere
c) Mesosphere
d) Thermosphere

23. Which gas is the primary component of the Earth’s atmosphere responsible for supporting life?
a) Carbon dioxide
b) Nitrogen
c) Oxygen
d) Methane

24. The movement of tectonic plates on the Earth’s surface is responsible for:
a) Earthquakes and volcanoes
b) Hurricanes
c) Solar eclipses
d) Formation of deserts

25. What is the name of the supercontinent that existed millions of years ago and eventually broke apart to form the current continents?
a) Pangaea
b) Gondwana
c) Laurasia
d) Rodinia

26. The “Ring of Fire” is a region characterized by:
a) Active volcanoes and frequent earthquakes
b) Dense forests and abundant wildlife
c) High precipitation and frequent hurricanes
d) Ancient ruins and archaeological sites

27. Which natural event occurs when the Moon comes between the Sun and the Earth, blocking out the Sun’s light?
a) Lunar Eclipse
b) Solar Eclipse
c) Supermoon
d) Blue Moon

28. The process of converting carbon dioxide into oxygen through photosynthesis primarily occurs in:
a) Oceans
b) Forests
c) Deserts
d) Grasslands

29. The Earth’s outermost solid layer, which includes the continents and ocean floors, is called the:
a) Mantle
b) Crust
c) Core
d) Lithosphere

30. What is the name of the region in the Pacific Ocean known for its frequent earthquakes and volcanic eruptions?
a) Bermuda Triangle
b) Hawaiian Islands
c) Galápagos Islands
d) Ring of Fire