3rd Cycle Review

What percentage of Earth's water is salt water?

• 3%

• 97%

• 25%

• 75%

Where is the majority of accessible freshwater stored?

• the ocean

• glaciers

• groundwater

• lakes

What is an aquifer?

• a porous and permeable rock layer that holds groundwater

• an impermeable rock layer that prevents water from percolating into the ground

• the division between the saturated and unsaturated zone

• a man-made sink hole

What is it called when water moves across an impermeable surface?

• accumulation

• precipitation

• runoff

• water flow

A _____________ is a region that contributes water to a river.

• river basin

• contribution zone

• stream divide

• water shed

How did the oceans get salty? Select all that apply.

• volcanic outgassing

• atmospheric exchange

• erosion

• precipitation

What is the thermocline?

• the region of rapid temperature decrease in the ocean

• the region of rapid temperature increase in the ocean

• the graph of oceanic temperature

• the division between the troposphere and stratosphere

Global ocean currents are dependent of which two factors? Select all that apply.

• Wind currents

• Salinity

• Heat

• Precipitation

Select (all that apply) the ocean floor features that would be found at an active continental margin.

• volcanoes

• trench

• continental rise

• sedimentary deposits

What is C?

• guyot

• seamount

• abyssal plain

• mid-ocean ridge