Earth's Systems

What percentage of water on Earth is salt water?

• 30%

• 97.5%

• 60%

• 2.5%

What percentage of the FRESH WATER on Earth is frozen in glaciers and ice caps?

• 69%

• 30%

• 1%

• 100%

What percentage of FRESH WATER is groundwater?

• 69%

• 30%

• 1%

• 25%

What percentage of FRESH WATER is easily available to us (surface water)?

• 69%

• 1%

• 30%

• 5%

The glacier belongs in which sphere?

• Atmosphere

• Hydrosphere

• Geosphere

• Biosphere

The tree belongs in which sphere?

• Atmosphere

• Hydrosphere

• Geosphere

• Biosphere

Rocks belong to which sphere?

• Atmosphere

• Hydrosphere

• Geosphere

• Biosphere

Wind belongs to which sphere?

• Atmosphere

• Hydrosphere

• Geosphere

• Biosphere

Air temperature affecting the evaporation of water is an example of which two spheres interacting?

• Biosphere and Atmosphere

• Hydrosphere and Geosphere

• Hydrosphere and Hydrosphere

• Atmosphere and Hydrosphere

An aquifer drying up causing a sink hole is an example of which two spheres interacting?

*An aquifer is an underground layer of fresh water.

• Biosphere and Hydrosphere

• Hydrosphere and Geosphere

• Hydrosphere and Atmosphere

• Atmosphere and Geosphere