Environmentalhard · Past Paper
Why is CO2 considered a 'Greenhouse Gas' but Nitrogen is not?
ANitrogen is too heavy
BCO2 absorbs and re-emits infrared radiation
CNitrogen is not found in the atmosphere
DCO2 is a poisonous gas
✓ Correct Answer: B — CO2 absorbs and re-emits infrared radiation
Molecules like CO2 have the structure to vibrate and absorb infrared energy, whereas homonuclear diatomic molecules like N2 do not.
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