Hydrology

Most of the Earth's water is in

• salty oceans
• freshwater lakes
• freshwater ponds
• glaciers

Compound found in ocean water that effects salinity

• sodium chloride
• sodium
• chlorine
• density

About how much of the Earth's surface is covered with water?

• 1/4
• 1/2
• 3/4
• 1/5

The supply of freshwater under the Earth's surface.

• watershed
• mouth
• headwaters
• groundwater

Where is most of the freshwater found on Earth?

• lakes
• glaciers
• oceans
• rivers

Which source of freshwater is not easily available for human use?

• oceans
• freshwater lakes
• rivers
• icecaps/glaciers

The change of water from a liquid to a gas.

• evaporation
• precipitation
• condensation
• transpiration

Any type of moisture that falls to the Earth.

• evaporation
• precipitation
• condensation
• transpiration

The release of moisture by living plants.

• evaporation
• precipitation
• condensation
• transpiration

The change of water from a vapor to a liquid.

• evaporation
• precipitation
• condensation
• transpiration