World Deepest Oceans Online Test (General Knowledge) Updated

Maan AliLast Updated: May 9, 2026

Start your preparation for World Deepest Oceans Online Test (General Knowledge) Updated. This online test contains important MCQs from past papers. Attempting this test will help you prepare for Annual Exams and Entry Tests. Read the questions carefully and select the correct option below to see your result.


General Knowledge
 World gk

Topic
 World Deepest Oceans

Test Name
 Famous World Deepest Oceans Test Online

Test Type
 MCQs Test

Total Questions
 67 MCQs

Time Allowed
 67 Minutes

The world’s oceans and seas cover approximately 71% of the Earth’s surface and contain about 97% of the planet’s water, making them one of the most fundamental topics in physical geography and general knowledge. From the mysterious depths of the Mariana Trench in the Pacific Ocean — the deepest known point on Earth at over 11,000 metres below sea level — to the relatively shallow waters of the Baltic Sea, the oceans and seas of the world hold countless records, facts, and geographic distinctions that are essential knowledge for any competitive exam aspirant. Understanding the depths, locations, sizes, bordering countries, unique features, and historical exploration of the world’s major oceans and seas is a topic that appears repeatedly and consistently in Pakistan’s most competitive examinations. Questions on the world’s oceans and seas are a staple of CSS, PMS, NTS, PPSC, FPSC, SPSC, KPPSC, AJKPSC, One Paper exams, Pakistan Studies, and General Knowledge papers at every level. The topic covers five major oceans — Pacific, Atlantic, Indian, Arctic, and Southern — along with dozens of important seas, gulfs, straits, and oceanic trenches that define global geography. This comprehensive set of MCQs on the World’s Deepest Oceans and Seas is carefully crafted to cover every exam-relevant angle: depths, rankings, locations, bordering nations, underwater trenches, marine geography, and record-breaking exploration. Always read the full explanation after every answer — it contains background facts and associated details that frequently appear as follow-up questions in real competitive exams.

World Deepest Oceans Online Test (General Knowledge) Updated

1. What is the average depth of the Indian Ocean?

2. What is the name of the deepest trench in the world?

3. In which ocean is the Mariana Trench located?

4. Which is the second deepest trench in the world?

5. Who was the first person to reach the bottom of Challenger Deep?

6. What is the depth of the Puerto Rico Trench?

7. What percentage of the ocean floor remains unexplored?

8. The Caspian Sea is technically what kind of water body?

9. What is the deepest point of the Southern Ocean?

10. Which famous shipwreck lies at the bottom of the Atlantic Ocean?

11. What percentage of the Earth's surface is covered by oceans?

12. Rank the following oceans from deepest to shallowest by average depth:

13. Which body of water connects the Red Sea to the Mediterranean Sea?

14. Which is the smallest sea in the world?

15. What is the average depth of the Pacific Ocean?

16. Where is the Kermadec Trench located?

17. Which is the deepest point among all oceans combined?

18. Which ocean surrounds Antarctica?

19. Which sea is the saltiest in the world?

20. What is the deepest point in the Pacific Ocean?

21. Which is the smallest and shallowest ocean in the world?

22. Which body of water separates Sri Lanka from India?

23. What type of geological process creates oceanic trenches?

24. What is the Mid-Ocean Ridge?

25. The 2004 Indian Ocean Tsunami was caused by an earthquake near which trench?

26. Which sea is known as the "Cradle of Civilisation" because of the ancient cultures that surrounded it?

27. Which is the coldest sea in the world?

28. Which is the third largest ocean in the world?

29. Which trench is the deepest in the Atlantic Ocean?

30. What is the deepest point in the Mediterranean Sea?

31. Which sea is located between Saudi Arabia and Africa?

32. Which is the largest and deepest ocean in the world?

33. Which ocean has the most islands?

34. The Dead Sea is the lowest body of water on Earth's surface. What is its approximate elevation?

35. Which is the deepest point in the Indian Ocean's Java Trench?

36. Jacques Cousteau was a famous pioneer of what field?

37. Which is the second largest ocean in the world?

38. What is the deepest point of the Atlantic Ocean?

39. How many oceans are there in the world?

40. What is the deepest point of the Arctic Ocean?

41. Which is the deepest lake in the world?

42. The Strait of Hormuz connects the Persian Gulf to which body of water?

43. Which is the warmest sea in the world?

44. Which is the largest sea in the world?

45. Which ocean has the longest coastline?

46. Which sea is an extension of the Indian Ocean bordering Pakistan?

47. What is the name for the deepest zone of the ocean (below 6,000 metres)?

48. What is the average depth of the Atlantic Ocean?

49. The "Ring of Fire" is associated with which ocean?

50. Which ocean is known as the "youngest ocean"?

51. Which is the deepest sea in the world?

52. What is the approximate depth of Challenger Deep?

53. What is the deepest point in the Indian Ocean?

54. What is the Gulf Stream?

55. What is the "midnight zone" of the ocean?

56. What connects the Atlantic Ocean and the Pacific Ocean in the south?

57. What is the longest ocean current in the world?

58. What is the deepest point of the Caribbean Sea?

59. Who discovered the wreck of the RMS Titanic?

60. Which sea lies between Europe and Africa?

61. Which is the deepest point of the Red Sea?

62. What is the approximate length of Pakistan's Arabian Sea coastline?

63. Which country's territory is closest to the Mariana Trench?

64. Which of the following is the correct order of oceanic trenches from deepest to shallowest?

65. Which submarine first explored the Mariana Trench?

66. What is the average depth of the Arctic Ocean?

67. Which ocean surrounds the Indian subcontinent on three sides?


 

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Maan AliLast Updated: May 9, 2026

Maan Ali

Hey there! I'm Maan Ali, your online test prep pal. Join me in the adventure of acing exams with ease. I'll share tricks, practice tests, and all you need to rock your studies. Let's make learning fun and success a sure thing!
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