Oceanography Review

Oceanography Review

Complete the following review.

Oceanography and the Ocean Floor

Open Ended

What features of the ocean floor indicate tectonic activity?

Fill in the Blank

Sea trenches are caused by?

Open Ended

When the seafloor spreads apart, volcanoes and ridges are formed because-

Multiple Choice

What ocean floor feature would the greatest amount of water pressure be exerted?

• Sea trench

• Guyout

• Abyssal Plain

• Continental shelf

Fill in the Blank

Approximately what percentage of Earth's surface is covered by oceans?

Ocean Currents, Tides, and Waves

Multiple Choice

Deep ocean currents are driven by

• wind

• convection due to salinity and temperature differences

Multiple Choice

What is the name of the current that goes along the east coast of the United States, and is it warm or cold?

• Gulf Stream, cold

• Gulf Stream, warm

• East America Stream, warm

• East America Stream, cold

Open Ended

London has a mild climate. What would help explain why London experiences a modern range of temperatures?

Fill in the Blank

Turbidity currents move along the ocean____

Fill in the Blank

Most waves are caused by ______

Multiple Select

During which phases of the moon will tides be the highest?

• Full

• 1st Quarter

• New

• 3rd Quarter

Multiple Select

During which phases of the moon do neap tides occur?

• Full

• 1st Quarter

• New

• 3rd Quarter

Fill in the Blank

How are tides caused?

Fill in the Blank

When the moon is at location B, what type of tide is Earth experiencing?

Fill in the Blank

The energy and motion of most waves is derived from

Fill in the Blank

When the moon is at location A, what type of tide is Earth experiencing?

Ocean Chemistry

Multiple Choice

A hydrometer measures water ______

• Density

• salinity

Multiple Select

What are the 2 most common ions found in ocean water?

• Na ⁺

• Br^-

• K⁺

• Cl^-

Multiple Select

Which processes lead to a decrease in the salinity of seawater?

• Precipitation

• Evaportation

• ice melting

• Formation of sea ice

• Increased river influx

Multiple Select

Which processes lead to an increase in the salinity of seawater?

• Precipitation

• Evaportation

• ice melting

• Formation of sea ice

• Increased river influx

Fill in the Blank

An important source of atmospheric oxygen is

Open Ended

The circulation of ocean water is an efficient way to transport____

Open Ended

Why is the surface temperature of the oceans more variable than the water near the ocean floor?

Ocean Life

Multiple Choice

Upwelling occurs along the western edges of continents, where surface water

• moves away from the coast and is replaced by deep ocean water

• sinks to the bottom

• becomes a tidal wave

Open Ended

Most life is found in the photic zone (surface layer) because___

Open Ended

Many ocean species are becoming scarce. What are some reasons for that?

Multiple Choice

What category of ocean life lives on the bottom of the sea floor?

• Benthos

• Beritic

• Neritic

• Plankton