Earth systems

Which Earth system includes rocks, sand, and mountains?

• geosphere

• atmosphere

• hydrosphere

• biosphere

This Earth System includes rivers, lakes, glaciers, and clouds.

• biosphere

• hydrosphere

• atmosphere

• geosphere

Buffalo, people, and flowers are part of what Earth System?

• hydrospere

• atmosphere

• biosphere

• geosphere

Study the graph below.  Where is most of the Earth's water located?

• Rivers and Lakes
• Glaciers and Icecaps
• oceans
• groundwater

What is the outermost layer of the Earth?

• Outer core
• Inner core
• Mantle
• Crust

The prefix "Bio" means ____

• Life

• Earth

• Water

• Air

Why is MOST of the freshwater on Earth not available for our use?

• All freshwater on Earth is easily accessible for use.
• It is frozen in the icecaps and glaciers.
• It is surface water.
• It is underground.

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

The prefix "Geo" means ____

• earth, ground and soil

• water

• life

• air

What are the Earth System's spheres? (You can choose more than one answer)

• hydrosphere

• biosphere

• geosphere

• hydrosphere