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

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

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

4. Which is the smallest sea in the world?

5. Which is the deepest sea in the world?

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

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

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

9. Which is the warmest sea in the world?

10. Where is the Kermadec Trench located?

11. What is the approximate depth of Challenger Deep?

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

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

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

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

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

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

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

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

20. Which is the coldest sea in the world?

21. In which ocean is the Mariana Trench located?

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

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

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

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

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

27. Which submarine first explored the Mariana Trench?

28. Which ocean has the most islands?

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

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

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

32. What type of geological process creates oceanic trenches?

33. How many oceans are there in the world?

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

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

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

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

38. Who discovered the wreck of the RMS Titanic?

39. Which ocean surrounds Antarctica?

40. Which is the largest sea in the world?

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

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

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

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

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

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

47. Which is the deepest lake in the world?

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

49. What percentage of the ocean floor remains unexplored?

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

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

52. What is the Mid-Ocean Ridge?

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

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

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

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

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

58. Which sea lies between Europe and Africa?

59. Which sea is the saltiest in the world?

60. Which ocean has the longest coastline?

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

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

63. What is the Gulf Stream?

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

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

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

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


 

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Maan AliLast Updated: May 9, 2026

Maan Ali

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