Exploring Ocean Floor Features

What is the primary characteristic of a continental shelf?

• It is a steep slope leading to the deep ocean floor.

• It is a flat, shallow area extending from the edge of a continent.

• It is a deep trench formed by tectonic activity.

• It is a mountainous region on the ocean floor.

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DOK Level 1: Recall

Which ocean floor feature is characterized by a continuous underwater mountain range?

• Ocean Trench

• Seamount

• Mid-Ocean Ridge

• Abyssal Plain

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DOK Level 1: Recall

Describe the formation process of ocean trenches.

• They are formed by the accumulation of sediments.

• They are created by volcanic activity.

• They are formed by the subduction of one tectonic plate beneath another.

• They are formed by the erosion of continental shelves.

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DOK Level 2: Skill/Concept

What distinguishes a guyot from a seamount?

• A guyot has a flat top, while a seamount has a pointed top.

• A guyot is found only in the Atlantic Ocean.

• A seamount is always taller than a guyot.

• A guyot is formed by sediment deposition.

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DOK Level 2: Skill/Concept

Which feature is typically found at the base of a continental slope?

• Continental Shelf

• Abyssal Plain

• Continental Rise

• Mid-Ocean Ridge

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DOK Level 1: Recall

Identify the primary difference between an island and a seamount.

• Islands are above sea level, while seamounts are below sea level.

• Seamounts are formed by erosion, while islands are formed by sediment deposition.

• Islands are found only in the Pacific Ocean.

• Seamounts are always volcanic, while islands are not.

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DOK Level 2: Skill/Concept

What is the main characteristic of abyssal plains?

• They are steep and rugged.

• They are flat and featureless.

• They are covered with thick layers of sediment.

• They are formed by volcanic activity.

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DOK Level 1: Recall

Analyze the role of mid-ocean ridges in the process of seafloor spreading.

• They act as barriers to ocean currents.

• They are sites where new oceanic crust is formed.

• They are regions of high sediment accumulation.

• They are areas of intense volcanic activity that destroy oceanic crust.

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DOK Level 3: Strategic Thinking

What is the primary function of the continental rise in the ocean floor structure?

• It connects the continental slope to the abyssal plain.

• It marks the boundary between continental and oceanic crust.

• It is the site of major tectonic activity.

• It is a region of high biological productivity.

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DOK Level 1: Recall

Compare and contrast the features of continental shelves and continental slopes.

• Continental shelves are deeper and steeper than continental slopes.

• Continental slopes are shallower and flatter than continental shelves.

• Continental shelves are flat and shallow, while continental slopes are steep and lead to deeper ocean areas.

• Continental slopes are flat and shallow, while continental shelves are steep and lead to deeper ocean areas.

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DOK Level 2: Skill/Concept