99 Modeling the Carbon Cycle Quiz

What is the estimated amount of carbon stored in the Earth's atmosphere?

• 750 gigatonnes

• 610 gigatonnes

• 41,000 gigatonnes

• 10,000 gigatonnes

Tags

NGSS.HS-ESS2-6

NGSS.HS-LS2-5

What is the approximate amount of carbon stored in sedimentary rocks?

• 750 gigatonnes

• 60 million gigatonnes

• 41,000 gigatonnes

• 10,000 gigatonnes

Tags

NGSS.HS-ESS2-6

How much carbon is released by respiration per year?

• 120 Gt

• 123 Gt

• 92 Gt

• 9 Gt

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-5

What is the annual carbon absorption by the ocean?

• 90 Gt

• 123 Gt

• 92 Gt

• 9 Gt

Tags

NGSS.HS-ESS2-6

What is the total amount of carbon stored in biomass?

• 750 gigatonnes

• 2610 gigatonnes

• 41,000 gigatonnes

• 10,000 gigatonnes

Tags

NGSS.HS-ESS2-6

NGSS.HS-LS2-4

NGSS.HS-LS2-5

What is the key question addressed in the document?

• How is carbon stored in the atmosphere?

• How can modeling be used to show us the cycling of carbon through the hydrosphere, geosphere, and biosphere?

• What is the rate of carbon absorption by plants?

• How much carbon is released by fossil fuels?

Tags

NGSS.HS-ESS2-6

NGSS.HS-LS2-5

What is the effect of combustion of fossil fuels on atmospheric carbon?

• Decreases carbon levels

• Has no effect

• Adds carbon dioxide to the atmosphere

• Absorbs carbon dioxide

Tags

NGSS.HS-ESS2-6

Which reservoir has the smallest amount of carbon stored?

• Atmosphere

• Biomass

• Ocean

• Fossil fuels

Tags

NGSS.HS-ESS2-6

How much will atmospheric carbon dioxide increase after 10 years of burning at our current rate of 9 gigatons/year?

• 9 gigatons

• 90 gigatons

• 40 gigatons

• 180 gigatons

Tags

NGSS.HS-ESS2-6

NGSS.HS-ESS3-5

How much carbon can we release by combustion in a year and no longer have a gain in temperature?

• 5 gigatons

• 11 gigatons

• 9 gigatons

• 7 gigatons

Tags

NGSS.HS-ESS2-6

NGSS.HS-ESS3-5