¹²C and ¹⁶O are among the most important elements in organic matter, including our bodies. What is the source of ¹²C and ¹⁶O in our solar system? A)They were a part of the cold, dark nebula from which the Sun condensed. B)They have been produced in the Sun as a part of the Sun's main-sequence nuclear reactions. C)These elements were not present in the original solar nebula but have been produced since by radioactive decay. D)These elements were present in the original Big Bang and are thus a part of everything formed since then.

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Quizplus · Accepted Answer

Sulfur (¹²C) and Oxygen (¹⁶O) are among the most common elements in the Solar System and all known life forms. They are believed to have originated from the cold, dark nebula from which the Sun and the rest of the Solar System condensed. These elements were present in the original solar nebula and were incorporated into the bodies that formed in it.

12C and 16O Are Among the Most Important Elements in Organic

¹²C and ¹⁶O Are Among the Most Important Elements in Organic