Unit 2 Test: Physical Oceanography

What does salinity measure? Choose the option that best answers the question.

• all the inorganic dissolved solids in seawater.

• the sodium in seawater.

• the amount of water in the sample

• The chloride in the seawater.

The higher the salinity the ____ the density. Choose the option that best answers the question.

• Higher

• Lower

• Equal

• Salinity does not affect density.

_____ can control the water concentration in their cells. The water concentration in the cells of _____ changes with the salinity of the surrounding seawater. Choose the option that best answers the question.

• Osmoconformers, osmoregulators

• Osmoregulators, osmoconformers

What is the average salinity of the ocean? Choose the option that best answers the question.

• 45 ppt

• 25 ppt

• 15 ppt

• 35 ppt

Which vertical ocean zone is considered the Photic zone? Choose the option that best answers the question.

• Epipelagic

• Mesopelagic

• Abyssopelagic

• Bathypelagic

• Hadalpelagic

The beach zone that is between the high tide and low tide line is called. Choose the option that best answers the question.

• Littoral

• Supralittoral

• Sublittoral

What zone is always underwater and stretches between the low tide and continental shelf? Choose the option that best answers the question.

• Oceanic Zone

• Intertidal Zone

• Neritic Zone

• Benthic Zone

Gyres tend to flow. Choose the option that best answers the question.

• only counter clockwise

• only clockwise

• clockwise in the Northern Hemisphere and counterclockwise in the Southern Hemisphere

• counterclockwise in the Northern Hemisphere clockwise the Southern Hemisphere

The ocean conveyor belt is important because. Choose the option that best answers the question.

• It is the primary method fishermen have to process what they catch.

• it redistributes heat and moderates the Earth’s climate.

• it creates energy for the Earth

• it makes fish migrate

The main current that travels past Florida’s coast is

• Gulf Stream

• Canary Current

• North Atlantic Drift

• West Wind Drift