11/15/2022 Homework #2: Ocean Trenches

The Mariana Trench is the deepest location in any of the Earth's oceans. Which of the following describes the most likely cause of its formation?

• A plate topped with oceanic crust diverged from another plate topped with oceanic crust.

• A plate topped with oceanic crust was subducted under another plate topped with oceanic crust.

• A plate toped with oceanic crust was subducted under another plate topped with continental crust.

• A plate topped with continental crust was subducted under another plate topped with oceanic crust.

Which letter is pointing to a trench?

• A
• D
• G
• B

Which part of the ocean floor is this?

• Ridge Valley

• Trench

• Seamount

• Continental Slope

Why are people not able to scuba dive to the deepest parts of the ocean?

• As you go deeper into the ocean, temperature decreases and pressure increases too much for a body to withstand.

• As you go deeper into the ocean, temperature and pressure increase too much for a body to withstand.

• As you go deeper into the ocean, temperature and pressure decrease too much for a body to withstand.

• As you go deeper into the ocean, temperature increases and pressure increases too much for a body to withstand.

Since 2012, there have only been four people to dive to the deepest part of the ocean. Why is deep ocean exploration have so many limitations?

• it is too easy to explore underwater

• scientists have already discovered everything we wanted to know about deep ocean exploration

• ocean water is too hot and submarine vessels will burn up deep in the ocean

• the risk and cost for underwater exploration is tremendous due to the decrease in water temperature and the increase in water pressure

In the 1930s, William Beebe and Otis Barton set the world record for the deepest dive in the underwater vessel named _______________, described as a hollow steel sphere

• Bathysphere

• Albatross

• Challenger

The __________ is the deepest known place on Earth

• Hawaiian Hot Spot

• Tonga Trench

• Mid-Atlantic Ridge

• Mariana Trench

Who was the filmmaker that manned this submersible to explored the lowest point of the Mariana Trench, the Challenger Deep in 2012?

• James Baldwin

• John Wayne

• James Cameron

• Steven Spielberg

A system that is used for determining the depth of the ocean floor is

• a guyot

• radiolarians

• a bathysphere

• sonar

The Mariana Trench is located in the ______ Ocean.

• Indian

• Pacific

• Western Atlantic

• Arctic