Mariana Trench

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

Tags

CCSS.L.4.4A

CCSS.RI.4.4

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.

Tags

CCSS.RI.4.1

CCSS.RI.4.2

CCSS.RI.4.8

How does the author arrange the section called “Challenger Looks Deep”?

• by describing events in time order

• by asking and answering questions

• by placing ideas in order of importance

• by presenting a list of causes and effects

Tags

CCSS.RI.4.5

What is the main idea of the part called “Plates So Deep”?

• Earth’s surface is made of many plates of rock.

• The top of each plate is the crust, and the bottom is part of the mantle.

• A heavy plate of rock is moving downward at the bottom of the Mariana Trench.

• Movements in Earth’s plates have formed many trenches, including the Mariana Trench.

Tags

CCSS.RI.4.2

Why do submarines often stay in the deep water of the Mariana Trench while traveling in the ocean?

• It is easy to move at high speeds there.

• It is hard for enemies to find them there.

• The area has been mapped out completely.

• The area is safe from harmful forces of nature.

Tags

CCSS.RI.4.1

CCSS.RI.4.2

CCSS.RI.4.3