UPSC previous year question bank

UPSC Oceanography Previous Year Questions

7 Oceanography questions asked in previous UPSC examinations, arranged from the latest year with answers and explanations.

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Questions
7
Years covered
2017–2025
Exam years
6
With answers
7

Oceanography questions by year

20251 2022 🔒1 2021 🔒2 2020 🔒1 2018 🔒1 2017 🔒1

UPSC Oceanography Previous Year Questions

1–1 of 1
  1. Q1 Prelims 2025 Prelims GS

    With reference to the planet Earth, consider the following statements: I. Rain forests produce more oxygen than that produced by oceans. II. Marine phytoplankton and photosynthetic bacteria produce about 50% of world's oxygen. III. Well-oxygenated surface water contains several folds higher oxygen than that in atmospheric air. Which of the statements given above is/are correct?

    1. I and II
    2. II only
    3. I and III
    4. None of the above statements is correct
    EnvironmentOceanographyOxygen production
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