What is the abyssal zone?

The deep zone from about 4,000 to 6,000 meters

What is the daily vertical migration?

Animals rising at night to feed and sinking by day

What is the neritic zone?

Shallow water over the continental shelf

Why are many twilight-zone animals red?

Red light doesn't reach there, so red looks black

Ocean Zones Quiz With Answers: Test Your Knowledge

This ocean zones quiz covers the sunlight, twilight, midnight, abyssal and hadal zones, plus intertidal, neritic and benthic zones, and the animals adapted to each depth. Test your knowledge with 10 questions on how the ocean is divided.

Start Ocean Zones Quiz With Answers Quiz

🎯 Daily Trivia Challenge • 🧠 10 Questions • ⏱️ 150 Seconds

Question 1 / 10 Time: 150s

Sunlight
How deep is the sunlight (epipelagic) zone?
Twilight
What is the zone from 200 to 1,000 meters called?
Midnight
What is the zone from 1,000 to 4,000 meters called?
Abyss
What is the abyssal zone?
Hadal
What is the deepest zone called?
Migration
What is the daily vertical migration?
Benthic
What does benthic refer to?
Neritic
What is the neritic zone?
Photosynthesis
Why can't plants grow in the midnight zone?
Red
Why are many twilight-zone animals red?

Explanations: answer key for all 10 questions

Q1: How deep is the sunlight (epipelagic) zone?
Answer: To about 200 meters
Most ocean life lives here.
Q2: What is the zone from 200 to 1,000 meters called?
Answer: Twilight (mesopelagic) zone
Dim light reaches it.
Q3: What is the zone from 1,000 to 4,000 meters called?
Answer: Midnight (bathypelagic) zone
It is completely dark.
Q4: What is the abyssal zone?
Answer: The deep zone from about 4,000 to 6,000 meters
It covers vast plains.
Q5: What is the deepest zone called?
Answer: Hadal zone
It exists only in trenches.
Q6: What is the daily vertical migration?
Answer: Animals rising at night to feed and sinking by day
It is the largest animal migration.
Q7: What does benthic refer to?
Answer: The seafloor
Crabs and sea stars are benthic.
Q8: What is the neritic zone?
Answer: Shallow water over the continental shelf
It is rich in life.
Q9: Why can't plants grow in the midnight zone?
Answer: There is no sunlight
Animals there eat falling food.
Q10: Why are many twilight-zone animals red?
Answer: Red light doesn't reach there, so red looks black
It is natural camouflage.

Ocean Zones Quiz – Layers of the Ocean

Scientists divide the ocean into zones by depth and light. The sunlight zone, down to about 200 meters, receives enough light for photosynthesis and holds most marine life.

Below lies the dim twilight zone, then the dark midnight zone, the abyssal zone over vast plains and the hadal zone in deep trenches. Each layer gets colder and darker, with pressure increasing steadily.

Animals adapt to each zone. Many twilight creatures migrate upward at night to feed, deep animals glow with bioluminescence and red coloring hides animals where red light cannot reach.

What This Quiz Teaches

This quiz is for students learning ocean zones.

How deep the sunlight zone is
What the twilight zone is
What the hadal zone is
What vertical migration is
Why deep animals are red

Did You Know?

Most of the ocean's volume is dark.
Lanternfish are common twilight fish.
Temperatures in the deep are near 2 °C.
Sperm whales hunt in the midnight zone.
The intertidal zone floods and drains daily.