Studying the decay of radioactive isotopes in dead organisms helps scientists to identify fossilized remains. The ratio of C-12
to 0—14 in the atmosphere is 1 x 1012. The table shows this ratio inside the body of three organisms. C121C14 Ratio
Organism ClZIC14 Ratio E s x 1012 F 1 x 1012 G 4 x 1012 What can most likely be concluded from the above information? 0 Only Organism F is alive, and Organism G died before Organism E. 0 Only Organism F is alive, and Organism E died before Organism G. 0 Only Organism E is alive, and Organism G died before Organism F. 0 Only Organism E is alive, and Organism F died before Organism G
Air-sea exchange is a physio-chemical process and is important for the cycling of gases such as carbon dioxide, methane, nitrous oxide, dimethylsulfide and ammonia
