Carbon Cycle

All of the carbon in existence is continually recycled in the carbon cycle

• True
• False

Tags

NGSS.MS-ESS2-1

NGSS.MS-LS2-3

When humans EXHALE, we release ____________________.

• Oxygen

• Nitrogen

• Water

• Carbon Dioxide

How does carbon get from the atmosphere into organisms?

• Decomposition

• Respirataion

• Photosynthesis

• Deposition

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

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

• Decomposition

• Deposition

• Photosynthesis

• Combustion

Tags

NGSS.MS-ESS3-4

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

• photosynthesis
• combustion
• respiration

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

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

When humans burn fossil fuels, most of the carbon quickly enters the                       as carbon dioxide.

• Water
• Atmosphere
• Sun
• Air

How do living organisms return carbon to the atmosphere in the carbon cycle?

• respiration and photosynthesis
•  decomposition and respiration

What is happening at 2?

• respiration: releasing CO₂

• decomposing CO₂ in the soil

• photosynthesis: absorbing CO₂

• turning CO₂ from the atmosphere into organic molecules

Tags

NGSS.MS-LS1-6

What is happening at 1?

• respiration: releasing CO₂
• decomposing CO₂ in the soil
• photosynthesis: absorbing CO₂
• turning CO₂ from the atmosphere into organic molecules

Tags

NGSS.MS-LS1-6