The Element(s) That Have Proven Most Useful for Stable Isotope

Question

The element(s) that have proven most useful for stable isotope studies are
A) carbon only.
B) nitrogen only.
C) sulfur only.
D) carbon, sulfur, and sometimes nitrogen.

Accepted Answer

Carbon, sulfur, and sometimes nitrogen have proven most useful for stable isotope studies because they can provide information about the isotopic composition of organic and inorganic materials, and can be used to track biogeochemical cycles, food webs, and environmental changes.