Unit 3a Lesson 1 TEST

Which of these reservoirs are usable and easy to access?

• saline lakes

• fresh lakes

• glaciers

• rivers

Pick the main sources of usable freshwater:

• The ocean

• Icecaps

• Groundwater

• Standing water

• Running water

A reservoir is an artificial lake that is built to ___________ water for a later time.

• filter water

• store

• redirect

• funnel

A _______ is a thick sheet of ice.

• glacier

• ice cap

• ground water

• I dont know

Most of Earth's freshwater is ______________

• ground water

• surface water

• underground

• trapped in glaciers and ice caps

All water on Earth is recycled through

• the water cycle

• pockets of nitrogen

• exhaled gases

• dead plants and animals

One example of runoff is bodies of standing freshwater such as lakes.

• true

• false

• I dont know

Choose the answer that best explains one reason why conservation of freshwater is

important.

• Freshwater should be conserved because it is limited to Earth's groundwater

• Freshwater should be conserved because it can be found in large quantities on Earth.

• Freshwater should be conserved because it is limited to Earth's oceans

• Freshwater should be conserved because it is the only water that can be consumed by humans.

Lakes and rivers = 21.4%

Groundwater = 3.8%

Other = 5.8%

Ground Ice and Permafrost = ?

Based on the above information, what can you conclude about the percentage of ground ice and permafrost?

• The percentage is the same as groundwater

• The percentage is greater or larger than any other source

• The percentage is less than any other source

• The percentage is the same as lakes and rivers

Which statement best describes where Earth's freshwater can be found?

• Most of the freshwater is trapped in glaciers and ice caps

• Earth's freshwater is spread out equally over ice, groundwater, and surface water

• Most of the freshwater on Earth is found underground

• Most of Earth's freshwater is in rivers and streams