Earth's Waters

Approximately what percentage of Earth;s water is fresh water?

• 97 %

• 71 %

• 30 %

• 3 %

A well in which groundwater rises because of pressure is called a(an)

• artesian well

• geyser well

• spring well

• dry well

The three major steps of the water cycle are

• evaporation, abrasion and precipitation

• evaporation, condensation and precipitation

• irrigation, precipitation and conservation

• saturation, evaporation and liquification

The horizontal distance between wave crests is the

• frequency

• wavelength

• trough

• wave height

As you go deeper in the ocean the temperature

• increases

• decreases

• does not change

• spirals

Salinity is a measure of _______ in water.

• carbon dioxide

• oxygen

• dissolved salts

• sand

In which zone is ocean temperature most affected by weather?

• transition zone

• deep zone

• surface zone

• polar zone

Tides are caused by

• strong winds that blow over ocean waters

• the interaction of Earth, moon and the Sun

• the shifting of the plates on the ocean floor

• variations in the salinity of ocean water

The tides with the greatest tidal range are called

• Neap Tides

• Spring tides

• full tides

• half tides

The property where water molecules stick to itself is called

• density

• adhesion

• cohesion

• surface tension