Carbon Dioxide in the Atmosphere Quiz (In LMS)
1. Increasing the amount of plant mass on earth results in atmospheric CO2 levels
o increasing
o decreasing
o staying the same
2. As the number of livestock increases, the amount of CO2 released to the atmosphere
o increases
o decreases
o stays the same
3. Photosynthesis is conducted by ______________, and cellular respiration is conducted by _______________.
o autotrophs, heterotrophs
o heterotrophs, autotrophs
o autotrophs, both autotrophs and heterotrophs
o heterotrophs, both autotrophs and heterotrophs
4. Mark ALL of the processes that contribute significant CO2 to the atmosphere.
o photosynthesis
o forest fires
o burning gasoline
o nuclear reactions
o coal generated power
o aerosol sprays
o oceans
o cellular respiration by animals (including humans)
5. During combustion reactions, amount of CO2 released to the atmosphere
o increases
o decreases
o stays the same
6. When the levels of CO2 gases increase in a closed solar powered model, the amount of energy trapped usually:
o increases
o decreases
o stays the sames
7. Which of the following is NOT true about the Greenhouse Effect?
o It is a natural process.
o It is only caused by carbon dioxide.
o It is necessary to sustain life on Earth.
o It is like a blanket of gases that warms the Earth.
8. Mark ALL of the processes that remove CO2 from the atmosphere (known as carbon sinks) ?
o photosynthesis
o forest fires
o burning gasoline
o nuclear reactions
o coal generated power
o aerosol sprays
o oceans
o cellular respiration by animals (including humans)
Figure 4: Green line is carbon dioxide levels from ice cores obtained at Law Dome, East Antarctica (CDIAC). Blue line is carbon dioxide levels measured at Mauna Loa, Hawaii (NOAA). Red line is annual global temperature anomaly (GISS) or departures from long-term averages.
9. According to ice core data shown on the graph above, the CO2 levels in 1900 were around
o -0.2 ℃
o -0.1 ℃
o 250 ppm
o 298 ppm
o 300 ppm
o 312 ppm
10. On the graph above, what does the red line illustrate?
o the average global temperature
o the changes in global temperature over time
o the amount the global temperature is different from the expected global temperature
o the global temperature norm
11. According to the graph above, earth’s temperatures have
o always increased when CO2 levels increase
o always decreased when CO2 levels increase
o tended to increase when CO2 levels increase
o tended to decrease when CO2 levels increase
o no particular correlation with CO2 levels