Q1: Lesson 3.3 | Layers of the Ocean

Question 1

is also called the sunlight zone and extends from the surface to 200 meters

Answer 1

epipelagic zone

Question 2

It is in this zone that most of the visible light exists

Answer 2

epipelagic zone

Question 3

sometimes referred to as the twilight zone or the midwater zone, as sunlight this deep is very faint.

Answer 3

mesopelagic zone

Question 4

Temperature changes are the greatest in this zone because it contains the thermocline, a region where water temperature decreases rapidly with increasing depth, forming a transition layer between the mixed layer at the surface and deeper water.

Answer 4

mesopelagic zone

Question 5

a region where water temperature decreases rapidly with increasing depth, forming a transition layer between the mixed layer at the surface and deeper water.

Answer 5

thermocline

Question 6

Because of the lack of light, bioluminescence begins to appear on organisms in this zone

Answer 6

mesopelagic zone

Question 7

Due to its constant darkness, this zone is also called the midnight zone.

Answer 7

bathypelagic zone

Question 8

It is the pitch-black bottom layer of the ocean.

Answer 8

Abyssopelagic zone

Question 9

The water temperature is constantly near freezing, and only a few creatures can be found at these crushing depths.

Answer 9

Abyssopelagic zone

Question 10

The deepest zone of the ocean

Answer 10

hadalpelagic zone

Question 11

in the Mariana Trench off the coast of Japan.

Answer 11

hadalpelagic zone