The Earth's Water c

96.5% of ocean water is pure water.

• true

• false

The salt in the ocean comes from:

• rocks on the ocean floor

• other oceans

• rivers

The salinity in warm, dry climates is_________because the water evaporates

• higher

• lower

• the same

Ocean water is___________near the surface.

• coldest

• warmest

• coolest

A ____________________is a regular up and down motion of water caused by energy traveling through the water.

• motion

• tide

• wave

_______________do not move but____________________do.

• waves, currents

• currents, waves

• sharks, currents

a:

• nekton

• plankton

• bethos

b is:

• plankton

• benthos

• nekton

c is:

• plankton

• nektos

• benthos

Includes tiny plants and animals that float at or near the ocean surface. ______ are a source of food for larger animals.

• nektos

• plankton

• benthos