Mariana Trench Quiz

The passage says that if Mount Everest were placed in the Challenger Deep, its peak would be underwater. What does peak mean?

• Top

• Size

• Shape

• Weight

• None of the above

Which point is best supported by the information about anglerfish and flashlight fish?

• Special instruments allow humans to study the deep sea.

• Humans cannot live in the rough conditions in the deep sea.

• Some animals have skills that help them live in the deep sea.

• Scientists are just beginning to understand animals in the deep sea.

The Challenger Deep is the deepest point in the Mariana Trench. How did the Challenger Deep get its name?

• It was named after the British Royal Navy ship sent to measure the ocean depths.

• Its name comes from a machine whose weights extend to the bottom of the ocean.

• Its name is related to a type of echo sounder that sends sound waves to the seafloor.

• It was named after the scientists who discovered that water near the Mariana Islands was very deep.

What is happening at the bottom of the Mariana Trench?

• The Puerto Rico Trench is being created.

• The bottom of the Mariana Trench is moving up, toward the surface.

• A layer of puttylike rock is moving between a heavy plate and a lighter plate.

• A heavy plate of rock is pressing into a lighter plate of rock, causing the heavy plate to move down.

Why do U.S. naval submarines use the Mariana Trench as an expressway?

• The water at the bottom of the trench is clearer.

• It is more difficult for enemies to detect them there.

• The area provides a safe space away from harmful forces of nature.

• The navy has mapped the entire trench and is familiar with the entire area.

Choose the best definition of AUTONOMOUS

• ontrolled remotely by a human

• able to operate on its own

• dependent of human effort

• None of the above

A ___ is a long, narrow groove or ditch.

• Fossil

• Lake

• 
  Trench

• Pond

True or False: An informational text shares facts and examples about a specific topic.

• True

• False

True or False. An informational article always contains maps.

• True

• False

____ is the production of light by a living organism.

• biology

• flashlight

• bioluminescence

• 
  luminous