ES 12-3B Seafloor Features Quiz

What is the primary feature formed at divergent plate boundaries under the ocean?

• Trenches

• Seamounts

• Mid-Ocean Ridges

• Abyssal Plains

match the term with the description

• hydrothermal vent

• found along mid-ocean ridges

• fractures

• narrow, long depressions in the ocean floor

• deep-sea trenches

• found along mid-ocean ridges

• abyssal plain

• prominent feature on the ocean floor

• mid-ocean ridge

• smooth ocean floor

Tags

NGSS.MS-ESS2-3

Deep ocean trenches are most often associated with which type of plate boundary?

• Divergent

• Convergent

• Transform

• Subduction

Tags

NGSS.HS-ESS1-5

NGSS.HS-ESS2-1

What is a seamount?

• A deep valley under the sea

• A flat area on the ocean floor

• An underwater mountain

• A shallow area near the coast

Tags

NGSS.MS-ESS2-3

Which of the following best describes abyssal plains?

• Mountainous regions under the sea

• Very flat, deep parts of the ocean floor

• Areas rich in hydrothermal vents

• The continental shelf

Match the following

• volcanic activity

• type of hydrothermal vent where metal oxides and sulfides are found

• black smoker

• type of hydrothermal vent where calcium and barium are found

• white smoker

• fractures are created due to this

• earthquake activity

• fractures are created due to this

The continental shelf is best described as:

• The edge of the continent that is under water

• The deepest part of the ocean

• A steep slope leading down from the edge of the continent

• A flat area at the base of the continental slope

Hydrothermal vents are most commonly found:

• In shallow waters near beaches

• On abyssal plains

• Near mid-ocean ridges

• On continental shelves

Tags

NGSS.MS-ESS2-4

A hole in the seafloor through which fluid heated by magma erupts is a(n) ____.

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS3-1

Marine sediments on the ocean floor primarily originate from:

• The remains of marine organisms

• Chemical precipitates from seawater

• Erosion of land and volcanic eruptions

• All of the above