The Water Cycle Quiz

Most of the earth's surface is covered with

• land.

• polar ice.

• salt water.

• fresh water.

An example of salt water is

• a lake

• a river

• an ocean

• tap water

What percent of the earth is covered by water?

• 20%

• 50%

• 70%

• 85%

Where is most of the Earth’s freshwater located?

• in lakes

• in rivers

• in oceans

• in glaciers

About 3% of the water on Earth is freshwater. Only about 40% of that freshwater is available for human use. Why is so much freshwater unavailable for human use?

• It is frozen.

• It is polluted.

• It is salt water.

• It is in aquifers.

This is a picture of a large sheet of ice that moves very slowly across the land. This sheet of ice covers the land and is only found where temperatures are extremely cold. What is this large sheet of ice called?

• glacier

• lake

• pond

• sea

Water on Earth is either freshwater or saltwater. What is the percent ratio of freshwater to percent saltwater on Earth?

• 1% freshwater : 99% saltwater

• 3% freshwater : 97% saltwater

• 30% freshwater : 70% saltwater

• 50% freshwater : 50% saltwater

What process is happening step A?

• transpiration

• evaporation

• condensation

• accumulation

The process in which water vapor is released into the atmosphere through plants.

• evaporation

• transpiration

• condensation

• precipitation

The process by which molecules of water vapor become liquid water.

• transpiration

• evaporation

• condensation

• accumulation