Earth's System

The four spheres of Earth...

• are all connected
• have nothing to do with one another
• exist on Venus and Mars
• don't affect human life

When living things breathe, they interact with which of Earth's spheres? 

• Geosphere 
• Hydrosphere 
• Atmosphere 
• Biosphere 

When carbon dioxide dissolves from the air into the ocean- the interaction is between...

• The atmosphere and geosphere 
• The atmosphere and hydrosphere 
• The atmosphere and biosphere 
• The atmosphere and atmosphere 

When a plants takes carbon dioxide from the air which two spheres are interacting? 

• Biosphere and atmosphere 
• Geosphere and atmosphere 
• Hydrosphere and atmosphere 
• Atmosphere and atmosphere 

When plants draw nutrients from the soil, the interaction is between which two spheres? 

• The atmosphere and the geosphere 
• The geosphere and the hydrosphere 
• The hydrosphere and atmosphere 
• The biosphere and the geosphere