Unit 8: Earth Systems Review

When humans EXHALE, we release ____________________.

• Oxygen

• Nitrogen

• Water

• Carbon Dioxide

When humans EXHALE, we release ____________________.

• Oxygen

• Nitrogen

• Water

• Carbon Dioxide

How does carbon get from the atmosphere into organisms?

• Decomposition

• Respirataion

• Photosynthesis

• Deposition

How does carbon get from underground deposits (fossil fuels) into the atmosphere?

• Decomposition

• Deposition

• Photosynthesis

• Combustion

Which of the following is the biggest carbon store?

• Plants

• Ocean

• Atmosphere

• Soil

Which of the following is the correct equation for PHOTOSYNTHESIS?

• CO₂ + light + H₂O --> O₂ + Sugar
• CO₂ + sugar + H₂O --> O₂ + light
• _O2 + light + H₂O --> CO₂ + Sugar
• CO₂ + O₂ + H₂O --> Light+ Sugar

The process of burning fuel to drive a car or operate a factory is called 

• photosynthesis
• combustion
• respiration

Very slight increases in the acidity of seawater __________  marine organisms that make shells.

• doesn't bother
• has no effect on 
• is unhealthy and stresses

What is the greenhouse effect?

• The warming of a planet due to trapped radiation.
• The cooling of Earth due to air pollution.
• The heating of a solid, such as a rock.

How does carbon get from living organisms into the sediment?

• Decomposition

• Respiration

• Photosynthesis

• Deposition