Hydrology Review

Which statement is true about water on Earth?

• Most of the freshwater on Earth is found in oceans.

• Most of the water available on Earth is drinkable.

• Most of the water available on Earth is not drinkable.

• Most of the freshwater on Earth is found as groundwater.

Where is most of the Earth's freshwater located?

• lakes & rivers

• glaciers & groundwater

• aquifers

• ocean

Why are oceans a major part of the water cycle?

• because they are large bodies of saltwater that easily evaporate salt into the air

• because they are large bodies of saltwater that fresh water can be evaporated from

• because the salt water condenses easily to become a gas in the air

• because the salt water runs off onto land to fill lakes and streams

The main source of energy for the water cycle is

• waterfalls

• the continuous movement of water

• gravity

• the Sun

Water that infiltrates soil is called

• aquifers

• groundwater

• water tunnels

• run-off

What part of the oceans & seas have the lowest salinity?

• where there is low precipitation

• where there is high evaporation

• where there are melting glaciers

• where there are high temperatures

Most water on Earth evaporates from where?

• oceans

• lakes

• rivers

• glaciers

What is the percent of available drinking freshwater?

• 97%

• 71%

• 3%

• less than 1%

What causes the ocean to have higher salinity?

• high precipitation and low evaporation

• high evaporation and low precipitation

Examples of freshwater::

• brackish and ponds

• lakes and rivers

• brackish and rivers

• oceans and lakes