The Hydrosphere

Structure of the Hydrosphere

Read through the slides to review the hydrosphere. Answer the multiple choice questions along the way!

Multiple Choice

Approximately 70% of Earth's surface is covered in water. What percentage of this water is freshwater?

• 3%

• 30%

• 70%

• 97%

Multiple Choice

Where is most freshwater on Earth located?

• groundwater

• lakes

• ice caps and glaciers

• oceans

Multiple Choice

Which best describes the characteristics of a river basin?

• Land drained by a river and its tributaries

• Land formed when rivers create estuaries and marshes

• Land at the mouth of a river where water flows into the ocean

• Land formed as a result of a river flooding

Multiple Choice

How does an aquifer produce clean water?

• the rocks filter the water

• the water goes in the core of Earth

• the water goes to the lakes

• the water gets pushed around

Multiple Choice

What is an estuary?

• The land area that drains water into a lake, river, or pond.

• The area where a river meets the ocean, where fresh and saltwater mix.

• The large body of saltwater that covers most of the earth's surface.

• The underground system that provides drinking water to an area.