Ocean Chemistry and Structure

What is responsible for the oxygen minimum zone (OMZ)?

• Increased photosynthesis in this zone

• Decreased photosynthesis in this zone

• More organisms respiring

• Less organisms respiring

• Both B & C

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

The average salinity of seawater is

• 35 ppt

• 5-25 ppt

• less than 1 ppt

• 22 ppt

Waters __________ allows it to dissolve other ions and molecules.

• acidity

• neutrality

• pH

• polarity

Tags

NGSS.MS-ESS2-4

The layer in which temperature rapidly decreases

• halocline

• pycnocline

• thermocline

The amount of gas that seawater can hold in solution will be greater

• in warmer water

• in colder water

•  in salty water

• under less pressure

Tags

NGSS.MS-PS1-4

What type of bond unites the Hydrogen and Oxygen to form a water molecule?

• Hydrogen

• Polar

• Ionic

• Covalent

The layer in which density increases

• densocline

• halocline

• thermocline

• pycnocline

Salinity is measured in 

• parts per million

• parts per thousand

• milligrams

• milliliters

Studies dissolved oxygen, pH, and temperature. 

• Chemical Oceanography

• Biological Oceanography

• Geological Oceanography

• Physical Oceanography

Tags

NGSS.HS-ESS2-5

The high salinity of the Mediterranean Sea is due primarily to-

• deposition

• precipitation

• volcanoes

• evaporation

Tags

NGSS.MS-ESS2-4