Methane Produced in the Late 20th and Early 21st Centuries

question 24

Multiple Choice

Methane produced in the late 20th and early 21st centuries is distinguishable from ancient sources of methane by using _________.

• A) Molecular markers to detect SNPs from ancient microorganisms
• B) An Isotope that is associated with radiation that has a half life of more than 5,000 years
• C) Testing remains of decaying animals
• D) None of the above