Exploring the Depths: Fascinating Facts & Quiz on Ocean & Marine Life - Mypsclife | Kerala PSC Free Notes | Model Exam

How much do you really know about the ocean and marine life? 🐠 Take this fun and educational Ocean & Marine Life Quiz and challenge your knowledge about sea creatures, coral reefs, deep-sea mysteries, and ocean conservation!

What is the largest ocean on Earth?

Atlantic Ocean

Indian Ocean

Pacific Ocean

Arctic Ocean

1/40

Which marine animal is known for its ability to change color and texture?

Shark

Octopus

Dolphin

Sea Turtle

2/40

What is the name of the deepest part of the ocean?

Mariana Trench

Tonga Trench

Puerto Rico Trench

Java Trench

3/40

Which of the following is a mammal?

Great White Shark

Orca

Bluefin Tuna

Jellyfish

4/40

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

50%

60%

71%

80%

5/40

What is the primary cause of ocean acidification?

Oil spills

Plastic pollution

Excess CO2 in the atmosphere

Overfishing

6/40

Which marine organism is responsible for producing most of the Earth's oxygen?

Coral

Phytoplankton

Seaweed

Jellyfish

7/40

What is the largest species of sea turtle?

Hawksbill Turtle

Green Sea Turtle

Leatherback Turtle

Loggerhead Turtle

8/40

Which ocean is the saltiest?

Pacific Ocean

Atlantic Ocean

Indian Ocean

Arctic Ocean

9/40

Which country has the longest coastline?

United States

Russia

Canada

Australia

10/40

What is the main component of coral reefs?

Sand

Calcium carbonate

Salt

Silica

11/40

Which fish is known for its ability to generate electricity?

Electric Eel

Pufferfish

Clownfish

Swordfish

12/40

Which ocean current is the strongest?

Gulf Stream

Kuroshio Current

Antarctic Circumpolar Current

California Current

13/40

What is bioluminescence?

Sound produced by whales

Light emitted by marine organisms

Electromagnetic waves in the ocean

Deep-sea thermal vents

14/40

Which marine creature has three hearts?

Shark

Whale

Octopus

Dolphin

15/40

What is the main diet of blue whales?

Squid

Small fish

Krill

Plankton

16/40

What is the term for a group of jellyfish?

Pod

Swarm

Bloom

Shoal

17/40

Which shark is considered the fastest?

Great White Shark

Tiger Shark

Hammerhead Shark

Shortfin Mako Shark

18/40

Which oceanic zone is the deepest?

Epipelagic Zone

Mesopelagic Zone

Bathypelagic Zone

Hadal Zone

19/40

What is the largest species of shark?

Great White Shark

Hammerhead Shark

Tiger Shark

Whale Shark

20/40

Which ocean has the most biodiversity?

Pacific Ocean

Atlantic Ocean

Indian Ocean

Southern Ocean

21/40

What causes ocean tides?

Wind

The Sun

The Moon

Underwater Volcanoes

22/40

Which marine animal is known for its ability to regenerate lost limbs?

Starfish

Squid

Shark

Dolphin

23/40

What is the most venomous marine animal?

Box Jellyfish

Blue-Ringed Octopus

Stonefish

Lionfish

24/40

What is the primary role of coral reefs in marine ecosystems?

Absorb CO2

Provide shelter for marine life

Increase ocean temperature

Create new landmasses

25/40

Which ocean current keeps Europe warmer than other regions at the same latitude?

Kuroshio Current

California Current

Gulf Stream

Antarctic Circumpolar Current

26/40

What percentage of the ocean has been explored?

10%

15%

5%

20%

27/40

Which marine mammal holds the title for the loudest call?

Humpback Whale

Dolphin

Sperm Whale

Blue Whale

28/40

Which fish can survive out of water for several days?

Mudskipper

Flying Fish

Pufferfish

Anglerfish

29/40

What is the main reason for ocean dead zones?

Plastic Pollution

Oil Spills

Overfishing

Excess Nutrients

30/40

Which sea is the saltiest on Earth?

Mediterranean Sea

Baltic Sea

Red Sea

Dead Sea

31/40

What is a group of fish called?

Pack

Herd

Shoal

Troop

32/40

Which sea creature has the largest brain relative to its body size?

Dolphin

Octopus

Whale Shark

Sea Otter

33/40

Which ocean is home to the Great Barrier Reef?

Indian Ocean

Pacific Ocean

Atlantic Ocean

Arctic Ocean

34/40

What is the world's largest living structure?

Amazon Rainforest

Great Barrier Reef

Himalayas

Antarctic Ice Sheet

35/40

Which deep-sea fish has a natural 'fishing rod' on its head?

Goblin Shark

Anglerfish

Viperfish

Lanternfish

36/40

What is the biggest threat to marine biodiversity?

Climate Change

Overfishing

Plastic Pollution

Oil Spills

37/40

Which ocean is the coldest?

Arctic Ocean

Indian Ocean

Pacific Ocean

Atlantic Ocean

38/40

Which oceanic zone gets the least sunlight?

Epipelagic

Mesopelagic

Bathypelagic

Abyssopelagic

39/40

Which sea creature has no brain or heart?

Jellyfish

Octopus

Starfish

Lobster

40/40

Correct : 0

Wrong : 0