Ocean Features Quiz

What is the deepest part of the ocean called?

• Continental Shelf

• Abyssal Plain

• Trench

• Seamount

Answer explanation

The deepest part of the ocean is called a trench. It is a long, narrow, and steep depression in the ocean floor.

Which ocean feature is known as an underwater mountain?

• Continental Slope

• Seamount

• Continental Rise

• Mid-ocean ridge

What is the name of the gently sloping area found between the continental slope and the abyssal plain?

• Continental Shelf

• Continental Slope

• Continental Rise

• Trench

Where would you find the continental shelf?

• At the edge of continents, under the ocean

• In the deepest part of the ocean

• At the top of seamounts

• Along mid-ocean ridges

What is the primary characteristic of a mid-ocean ridge?

• It is the deepest part of the ocean.

• It is an underwater mountain range.

• It is a flat area on the ocean floor.

• It is a steep slope leading down from the edge of a continent.

The abyssal plain is best described as:

• A steep incline

• A flat area of the ocean floor

• An underwater mountain

• The edge of a continent under water

What is the significance of the continental slope?

• It connects the continental shelf to the abyssal plain.

• It is the flattest part of the ocean.

• It is where the deepest trenches are found.

• It is covered with thick layers of sediment.

Which feature is formed by tectonic plates pulling apart?

• Continental Shelf

• Abyssal Plain

• Trench

• Mid-ocean ridge

Seamounts are:

• Always found near coastlines

• Underwater volcanoes that may or may not reach the surface

• The deepest parts of the ocean

• Flat areas on the continental shelf

The area where sediment accumulates at the base of the continental slope is called:

• Continental Shelf

• Continental Slope

• Continental Rise

• Abyssal Plain