8.E.1.2

A technique that uses sound waves to measure the depth of the ocean floor is

• dredging

• sonar

• SCUBA

• weighted lines

Which of the following is an example of a connection between an ocean food web and a land food web?

• A polar bear eats a seal.

• A whale eats a cod.

• A small fish eats plankton.

• A cod eats a small fish.

Tags

NGSS.MS-LS2-2

A deep canyon in the ocean floor is called a(n)

• abyssal plain.

• seamount

• trench

• continental shelf.

Tags

NGSS.MS-ESS2-3

Sea-floor spreading occurs in places where two plates are

• converging

• diverging

• motionless

• breaking the surface.

Benthos are organisms that live

• on the surface of water.

• throughout the water column.

• on the ocean floor.

• in shallow water.

Which of the following organisms is an example of nekton?

• lobster

• dolphin

• clam

• sea star

Many organisms that live in the rocky intertidal zone are adapted to cling to the rocks to withstand the

• pounding of the waves.

• changes in salinity.

• periods of being underwater and exposed to air.

• changes in density.

As ocean water in a tide pool warms and evaporates, the remaining water becomes

• cooler

• saltier

• calmer

• darker

Tags

NGSS.MS-ESS2-4

A coastal inlet or bay in which freshwater from rivers mixes with salty ocean water is called a(n)

• transition zone.

• abyssal plain.

• estuary

• hydrothermal vent.

Tags

NGSS.MS-ESS2-4

The part of the ocean that extends from the low-tide line to the edge of the continental shelf is the

• neritic zone.

• open-ocean zone.

• intertidal zone.

• deep zone.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4