Oceanography Earth Science

What is the only part of the ocean floor without tectonic activity?

• continental slope
• continental margin
• seamount
• abyssal plain

Why is there high salinity in the Mediterranean Ocean?

• precipitation
• evaporation
• volcanoes
• deposition

Sea levels rise when glacial ice caps-

• grow
• melt
• migrate
• hit the Titanic

Ocean currents are caused by-

• underwater earthquakes
• human influence
• sun moon and Earth interaction
• density differences

Upwelling is most likely to occur in what area?

• in a deep sea trench
• in a shallow gulf
• along a coastline
• in open ocean

Why does an ice shelf float?

• it is more dense
• it is less dense
• the ice is melting faster than it can sink
• vegetation is sinking below and causing it to float

Seawater is typically denser than freshwater due to seawaters-

• greater depth
• smaller mass
• higher salinity
• lower freezing point

Continental shorelines generally have a milder climate than locations inland at the same latitude due to-

• ocean water acting as a conductor of heat
• land is a greater storage of heat
• ocean water stores and releases heat more slowly than land
• land masses release hear slower than land

What part of the ocean floor would be the most difficult to explore due to pressure?

• continental slope
• sea mount
• trench
• abyssal plain

What sea floor feature is created by erosion and deposition?

• continental rise
• submarine canyon
• Marianas trench
• seamount