Gk on Oceans
General Knowledge

In this article, we will look at and discuss  Gk Questions on Unlocking our Oceans. The vastness of our world’s oceans often remains an enigma. Despite covering about 71% of Earth’s surface, much of the ocean remains unexplored, its depths mysterious and teeming with secrets awaiting discovery. In this installment of our World Geography series, we dive deep into some general knowledge questions to help unlock the wonders of our oceans.

 

1.Q: How many oceans are there in the world?
A: Five.

 

  1. Q: Name the five oceans.
    A: Pacific, Atlantic, Indian, Southern (or Antarctic), and Arctic.

 

  1. Q: Which is the largest ocean?
    A: Pacific Ocean.

 

  1. Q: Which is the smallest ocean?
    A: Arctic Ocean.

 

  1. Q: Which ocean is the deepest?
    A: Pacific Ocean (with the Mariana Trench).

 

  1. Q: Where is the Bermuda Triangle located?
    A: Atlantic Ocean.

 

  1. Q: Which ocean is the warmest?
    A: Indian Ocean.

 

  1. Q: What’s the coldest ocean?
    A: Arctic Ocean.

 

  1. Q: Which ocean surrounds Antarctica?
    A: Southern (or Antarctic) Ocean.

 

  1. Q: What is the Great Barrier Reef?
    A: The world’s largest coral reef system, located in the Pacific Ocean.

 

  1. Q: Where is the Sargasso Sea located?
    A: Atlantic Ocean.

 

  1. Q: Which ocean has the most islands?
    A: Pacific Ocean.

 

  1. Q: What percentage of the Earth’s surface is covered by oceans?
    A: About 71%.

 

  1. Q: What is salinity?
    A: The concentration of salt in water.

 

  1. Q: Which ocean has the highest salinity?
    A: Atlantic Ocean.

 

  1. Q: Which layer of the ocean is the deepest?
    A: The hadalpelagic zone.

 

  1. Q: What causes tides?
    A: The gravitational pull of the moon and sun.

 

  1. Q: What’s the “Ring of Fire”?
    A: A zone of frequent earthquakes and volcanic activity in the Pacific Ocean basin.

 

  1. Q: Where is the Marianas Trench located?
    A: Pacific Ocean.

 

  1. Q: What is the longest mountain range in the world?
    A: The Mid-Atlantic Ridge.

 

  1. Q: Why is the Dead Sea so salty?
    A: Due to high evaporation and low freshwater inflow.

 

  1. Q: Which ocean is the most polluted?
    A: Pacific Ocean, notably the North Pacific.

 

  1. Q: What is the “Great Ocean Conveyor Belt”?
    A: A global oceanic circulation system.

 

  1. Q: Why are oceans salty?
    A: Erosion of rocks and minerals on land carried to the sea by rivers.

 

  1. Q: What is the average depth of the oceans?
    A: About 3,800 meters (12,500 feet).

 

  1. Q: What’s the main threat to coral reefs?
    A: Climate change and human activity.

 

  1. Q: Are oceans rising or falling?
    A: Rising, due to melting polar ice and thermal expansion.

 

  1. Q: Where is the “Plastic Island” or “Great Pacific Garbage Patch”?
    A: North Pacific Ocean.

 

  1. Q: Which ocean was once known as the “Ethiopian Ocean”?
    A: Indian Ocean.

 

  1. Q: What is a tsunami?
    A: A series of ocean waves with very long wavelengths caused primarily by underwater earthquakes.
  2. Q: Which two continents does the Atlantic Ocean separate?
    A: Europe/Africa and the Americas.

 

  1. Q: Where is the Panama Canal located?
    A: It connects the Atlantic and Pacific Oceans in Central America.

 

  1. Q: What is an atoll?
    A: A ring-shaped coral reef, island, or series of islets.

 

  1. Q: Which is the deepest point in the Indian Ocean?
    A: Sunda Trench.

 

  1. Q: What percentage of Earth’s water is in the oceans?
    A: About 97.5%.

 

  1. Q: What causes ocean currents?
    A: Wind, water temperature, salinity, and the Earth’s rotation.

 

  1. Q: What is El Niño?
    A: A periodic warming of sea surface temperatures in the central and east-central equatorial Pacific.

 

  1. Q: What’s the largest sea in the world?
    A: The Philippine Sea.

 

  1. Q: Are all sea creatures affected by ocean depth?
    A: Yes, as factors like pressure, temperature, and light vary.4

 

  1. Q: Why is the ocean blue?
    A: Water absorbs colors in the red part of the spectrum and reflects blue.

 

  1. Q: What is ocean acidification?
    A: The ongoing decrease in the pH of Earth’s oceans due to rising levels of atmospheric carbon dioxide.

 

  1. Q: How much of the world’s oxygen is produced by oceans?
    A: About 50%.

 

  1. Q: Are there mountains under the ocean?
    A: Yes, called underwater or submarine mountains.

 

  1. Q: What is the “Challenger Deep”?
    A: The deepest known point in Earth’s oceans located in the Mariana Trench.

 

  1. Q: What is the Gulf Stream?
    A: A warm and swift ocean current in the North Atlantic Ocean.

 

  1. Q: How old are the Earth’s oceans?
    A: Around 4 billion years.

 

  1. Q: What is the main source of life in the oceans?
    A: Phytoplankton, tiny plant-like organisms.

 

  1. Q: Do all oceans have the same level of saltiness?

     A: No, salinity varies by location and depth.

 

  1. Q: What’s the difference between a sea and an ocean?
    A: Size and depth; oceans are larger and deeper than seas.

 

  1. Q: What is the world’s second-largest ocean?
    A: Atlantic Ocean.

 

51.How many known oceans are there, and can you name them?
Answer: There are five: Pacific, Atlantic, Indian, Arctic, and the Southern (or Antarctic) Ocean.

 

  1. Which ocean boasts the title of being the largest by surface area?
    Answer: The Pacific Ocean.

 

  1. Delve into the depths: which part of our oceans is the deepest?
    Answer: The Mariana Trench in the Pacific Ocean.

 

  1. The world’s longest underwater mountain range is?
    Answer: The Mid-Atlantic Ridge.

 

  1. Oceans don’t remain static. Are they currently rising or falling?
    Answer: They are rising, due to factors like melting polar ice and thermal expansion.

 

  1. Which oceanic phenomenon is caused by the gravitational pull of the moon and the sun?
    Answer: Tides.

 

  1. A significant concern for marine life is the decreasing pH levels in oceans. What is this process called?
    Answer: Ocean acidification.

 

  1. Which ocean surrounds the icy continent of Antarctica?
    Answer: The Southern (or Antarctic) Ocean.

 

  1. Often heard in the news, what is the “Great Pacific Garbage Patch”?
    Answer: A massive accumulation of floating plastic debris in the North Pacific Ocean.

 

As we embark on this series, it’s essential to remember that our oceans are not just vast reservoirs of water. They are living entities, brimming with life, secrets, and stories that have shaped our world’s history. They influence our climate, provide food and livelihoods for billions, and offer a sense of wonder that has inspired countless tales of adventure and discovery.

Yet, with great beauty comes great responsibility. As we continue to unlock the mysteries of our oceans, it’s crucial to ensure their preservation and protection. They are not just geographical features; they are life sources, deserving of our respect and care.

Join us as we continue our journey in the subsequent parts of this series, exploring more facets of our planet’s geography. The vastness of the world is matched only by our curiosity, and there’s always more to learn and discover.

 

 

thegktree.com

Leave a Reply

Your email address will not be published. Required fields are marked *