Marine Biome Quiz

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

• 50%

• 60%

• 70%

• 80%

Which zone of the ocean is completely dark and cold?

• Disphotic zone

• Aphotic zone

• Euphotic zone

• Twilight zone

What is the average temperature of all oceans?

• 50°F (10°C)

• 39°F (4°C)

• 32°F (0°C)

• 60°F (15°C)

Which marine plant is known to provide almost half of the Earth's oxygen?

• Seaweed

• Mangroves

• Coral

• Phytoplankton

What adaptation do sea otters have to survive in cold water?

• Feathers

• Scales

• Thick fur

• Blubber

What is the largest animal on Earth?

• Elephant

• Giraffe

• Blue whale

• Great white shark

What is a major source of pollution in the oceans?

• Noise pollution

• Oil spills

• Light pollution

• Plastic waste

What is one way to help protect the ocean?

• Pollute

• Overfish

• Recycle

• Use more plastic

Which ocean zone is known for having light similar to twilight on land?

• Aphotic zone

• Disphotic zone

• Euphotic zone

• Sunlit zone

What is the deepest point in the ocean called?

• Pacific Rim

• Bermuda Triangle

• Great Barrier Reef

• Mariana Trench