Planetary Science (including Planetary Geology) – MCQs

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1. The largest planet in our solar system is:





2. Which planet is known as the “Red Planet”?





3. The only planet that rotates on its side (axis tilted about 98°) is:





4. Which planet has the highest surface temperature?





5. The Great Red Spot is a massive storm located on:





6. The asteroid belt lies between the orbits of:





7. Which planet has the longest day (rotation period)?





8. The largest moon in the solar system is:





9. Olympus Mons, the largest volcano in the solar system, is found on:





10. Which planet is called the “Morning Star” or “Evening Star”?





11. The Kuiper Belt is located beyond the orbit of:





12. Which planet has the fastest rotation period (about 10 hours)?





13. The dwarf planet classified in the asteroid belt is:





14. Which planet has the most extensive ring system?





15. The largest canyon in the solar system, Valles Marineris, is located on:





16. The planet with the densest atmosphere is:





17. Which planet has a day almost equal in length to Earth’s?





18. Which celestial body is considered a “failed star”?





19. The surface of Mercury is most similar to:





20. Which gas is most abundant in the atmosphere of Mars?





21. The blue color of Neptune and Uranus is mainly due to:





22. Which is the hottest planet in the solar system?





23. Titan, the largest moon of Saturn, is unique because it has:





24. The smallest planet in the solar system is:





25. Which planet has the most moons?





26. Which of the following is NOT a terrestrial planet?





27. The first spacecraft to land on Mars was:





28. Which planet has the largest tilt, causing extreme seasons?





29. Phobos and Deimos are moons of:





30. Which planet is known as the “Blue Planet”?





31. Which planet has a surface pressure about 90 times greater than Earth?





32. Which planet shows evidence of ancient river valleys and deltas?





33. The Great Dark Spot is a storm observed on:





34. Which planet is closest in size to Earth?





35. The first planet discovered using a telescope was:





36. The boundary separating the solar system from interstellar space is called:





37. Which planet has hexagon-shaped storms at its pole?





38. Which spacecraft was the first to fly by Pluto?





39. Which planet has retrograde rotation (rotates opposite to most planets)?





40. Which moon is believed to have a subsurface ocean that could harbor life?





41. Which planet has the tallest known mountain in the solar system?





42. Pluto was reclassified as a dwarf planet in:





43. Which is the coldest planet in the solar system?





44. The Moon’s surface is primarily covered by:





45. Which of the following planets has no moons?





46. The average distance between the Earth and the Sun is called:





47. The dwarf planet Haumea is unusual because of its:





48. Which spacecraft provided detailed images of Saturn and its rings?





49. The surface of Venus is mainly shaped by:





50. The Oort Cloud is believed to be the source of:





  1. Engineering Geology – MCQs

  2. Environmental Geology – MCQs

  3. Geochemistry – MCQs

  4. Geochronology – MCQs

  5. Geomorphology / Surface Processes – MCQs

  6. Geophysics – MCQs

  7. Hydrogeology – MCQs

  8. Igneous Petrology – MCQs

  9. Metamorphic Petrology – MCQs

  10. Sedimentology – MCQs

  11. Stratigraphy – MCQs

  12. Structural Geology – MCQs

  13. Volcanology – MCQs

  14. Natural Hazards / Geological Hazards – MCQs

  15. Economic Geology / Mining / Petroleum Geology – MCQs

  16. Oceanography / Marine Geology – MCQs

  17. Palaeontology – MCQs

  18. Planetary Science (including Planetary Geology) – MCQs

  19. Remote Sensing – MCQs

  20. Natural Resources / Unconventional Energy – MCQs

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