Oceans Part 3 and 4

Describe the composition of ocean water.

• oxygen

• nitrogen

• dissolved solids

• carbon dioxide

T/F: Other atmospheric gases are also present in ocean in small amounts.

• True

• False

Gas may enter ocean water from:

• streams & rivers

• volcanic eruptions

• organisms living in the ocean

• all of the above

________ water is less able to dissolve gasses than ________water is.

• cooler, warmer

• warmer, warmer

• warmer, cooler

• warmer, denser

Because gaseous CO2 affects the atmosphere’s ability to trap thermal energy from the sun, the ocean is important to the regulation of ______.

• waves

• climate

• currents

• continental drift

Solids dissolved in ocean water are composed of about __ chemical compounds.

• 90

• 35

• 75

• 60

a measure of the amount of dissolved salts and other solids in a given liquid

• density

• salinity

• freezing

• currents

A layer in a body of water in which the temperature drops faster with increased depth than it does in other layers.

• thermocline

• salinity

• dissolved salts

• pack ice

When sunlight penetrates the surface of the ocean the ocean water reflects the ____ wave-lengths of light. The other colors are absorbed.

• green

• pink

• red

• blue

Surface currents are controlled by three factors:

• air currents

• Earth's rotation

• location of the continents

• all of the above