Environmentalhard · Past Paper
The 'Suess Effect' refers to the:
AThinning of the ozone layer
BDilution of Carbon-14 in the atmosphere due to fossil fuel burning
CIncrease in sea levels
DWarming of the oceans
✓ Correct Answer: B — Dilution of Carbon-14 in the atmosphere due to fossil fuel burning
Because fossil fuels are millions of years old, they contain no Carbon-14. Burning them releases CO2 that lacks C-14, diluting the atmospheric concentration of C-14.
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