A clean-burning automobile engine emits about 5 lb (pounds) of C atoms in the form of...

 

 

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A clean-burning automobile engine emits about 5 lb (pounds) of C atoms in the form of CO2 molecules for every gallon of gasoline it consumes. The average American car is driven about 12,000 miles per year. Using this information, check the statement that the average American car releases its own weight in carbon into the atmosphere each year. List the assumptions you make to solve this problem. Hint: You need a couple of equalities: 12000 miles =1 yr, students need to look up #gallons miles for the average car, & 5 lb carbon 1 gallon gas. With this information, you can use conversions to determine how many lb of carbon the car gives off per year to go 12000 miles and compare it to the average weight of a car. 2. The Mauna Loa Hawaii atmospheric CO2 concentration measurements taken since 1958 constitute the longest, continuous record of atmospheric CO2 available in the world https://www.earl.noaa.gov/gmd/obop/mlo/programs/coop/scripps/co2/co2.html 3. What other reasons are why the concentration of CO₂ has changed? A clean-burning automobile engine emits about 5 lb (pounds) of C atoms in the form of CO2 molecules for every gallon of gasoline it consumes. The average American car is driven about 12,000 miles per year. Using this information, check the statement that the average American car releases its own weight in carbon into the atmosphere each year. List the assumptions you make to solve this problem. Hint: You need a couple of equalities: 12000 miles =1 yr, students need to look up #gallons miles for the average car, & 5 lb carbon 1 gallon gas. With this information, you can use conversions to determine how many lb of carbon the car gives off per year to go 12000 miles and compare it to the average weight of a car. 2. The Mauna Loa Hawaii atmospheric CO2 concentration measurements taken since 1958 constitute the longest, continuous record of atmospheric CO2 available in the world https://www.earl.noaa.gov/gmd/obop/mlo/programs/coop/scripps/co2/co2.html 3. What other reasons are why the concentration of CO₂ has changed?

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