Carbon Cycle (Earth Spheres)

What increases the level of CO₂?

• Deforestation and fossil fuels

• Planting trees

• Using renewable energy

• Driving electric cars instead of petroleum cars

Which one of these sources of carbon is NOT a part of the biosphere?

• shells/coral
• land plants
• marine animals
• petroleum

Which one of these sources of carbon is NOT a part of the geosphere?

• Coal
• Petroleum
• Natural gas
• Dissolved CO₂ in the ocean

Carbon dioxide dissolved in the ocean is a part of which system?

• Atmosphere
• Hydrosphere
• Biosphere
• Geosphere

Tags

NGSS.MS-ESS2-4

What is the end product of burning fossil fuels (whether they are coal, oil or natural gas) and where does it go?

• Carbon dioxide; atmosphere
• Methane; atmosphere
• Oxygen; atmosphere
• Water; atmosphere

TRUE or FALSE There's more carbon stored in the ocean than surface sediments, biosphere and atmosphere.

• TRUE

• FALSE

Tags

NGSS.HS-ESS2-6

Which of these is a real path in the carbon cycle?

• Atmospheric CO₂ -> land plants -> limestone
• Atmospheric CO₂ -> oceanic CO₂ -> marine plants/algae -> coal
• Atmospheric CO₂ -> land plants -> land animals -> soil

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

NGSS.MS-ESS2-1

carbon is moved from rocks and soil on land to rivers and oceans by a process called 

• weathering
• erosion
• runoff
• all of these

Tags

NGSS.MS-LS2-3

Which forest carbon process moves carbon from the biosphere to the atmosphere?

• Ingestion 
• Combustion/Burning 
• Respiration 
• Both respiration and combustion 

Which process moves carbon from above-ground food webs to the food web in the soil?

• Respiration 
• Photosynthesis
• Ingestion(eating)
• Death and Decomposition

Tags

NGSS.MS-LS2-3