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RRB NTPC World Geography and Environment — practice questions

Explore 60 free World Geography and Environment questions in RRB NTPC General Awareness. Open each question or exercise to read its content, reference answers and available explanation.

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World Geography and Environment questions and exercises with answers

Showing questions 1–30 of 60.

Which ocean is the largest on Earth by surface area?Read the answer and worked solution →Which ocean is recognized as the smallest major ocean?Read the answer and worked solution →Where is the deepest oceanic trench on Earth located?Read the answer and worked solution →What is the typical average salinity of open seawater?Read the answer and worked solution →What is the highest point of an ocean surface wave called?Read the answer and worked solution →What term designates the lowest point between ocean waves?Read the answer and worked solution →Which ocean layer receives adequate sunlight for plants?Read the answer and worked solution →Which marine zone remains completely dark without sunlight?Read the answer and worked solution →Early salinity measurement was based on chlorinity of:Read the answer and worked solution →What term describes a continuous directed flow of seawater?Read the answer and worked solution →What feature forms an underwater mountain chain in basins?Read the answer and worked solution →The oceanic pole of inaccessibility Point Nemo lies in:Read the answer and worked solution →Which gas is the most abundant by volume in Earth dry air?Read the answer and worked solution →What is the approximate percentage of oxygen in dry air?Read the answer and worked solution →Which atmospheric layer is closest to the surface of Earth?Read the answer and worked solution →Which atmospheric layer contains the protective ozone layer?Read the answer and worked solution →Which middle atmospheric layer lies above the stratosphere?Read the answer and worked solution →What is the outermost layer of Earth's atmosphere called?Read the answer and worked solution →The Karman line defining the boundary of outer space is at:Read the answer and worked solution →What term describes the rate of temperature change with height?Read the answer and worked solution →Why does the clear daytime sky appear predominantly blue?Read the answer and worked solution →In which atmospheric layer do polar auroras occur?Read the answer and worked solution →Approximately what fraction of atmospheric mass is in troposphere?Read the answer and worked solution →Atmospheric air pressure at ground level is caused by:Read the answer and worked solution →In which year was the landmark Kyoto Protocol adopted?Read the answer and worked solution →Which 2015 agreement pledged to limit warming well below 2 C?Read the answer and worked solution →Which gas is the primary human-driven greenhouse gas?Read the answer and worked solution →Which powerful greenhouse gas is produced by livestock digestion?Read the answer and worked solution →What is the acronym for the UN body assessing climate science?Read the answer and worked solution →Which impact directly results from climate change on oceans?Read the answer and worked solution →

Worked practice questions

Which ocean is the largest on Earth by surface area?

  1. Pacific Ocean
  2. Atlantic Ocean
  3. Indian Ocean
  4. Southern Ocean
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Correct answer: A. Pacific Ocean

The Pacific Ocean is Earth's largest ocean, covering over 165 million square kilometers.

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Which ocean is recognized as the smallest major ocean?

  1. Indian Ocean
  2. Arctic Ocean
  3. Southern Ocean
  4. Atlantic Ocean
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Correct answer: B. Arctic Ocean

The Arctic Ocean is the smallest and shallowest of the five recognized oceans.

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Where is the deepest oceanic trench on Earth located?

  1. Java Trench
  2. Kuril Trench
  3. Mariana Trench
  4. Tonga Trench
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Correct answer: C. Mariana Trench

The Mariana Trench in the Pacific Ocean contains the deepest surveyed point on Earth.

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