which sample would be appropriate for dating by means of radioactive carbon?\na mastodon that is about…

which sample would be appropriate for dating by means of radioactive carbon?\na mastodon that is about 15,000 years old\nan igneous intrusion from a 250 - million - year - old volcano eruption\na homo erectus skeleton thought to be around 800,000 years old\nstromatolites containing 3 - billion - year - old bacterial mats\nthe sediments of the cretaceous sea where they are now exposed on land

which sample would be appropriate for dating by means of radioactive carbon?\na mastodon that is about 15,000 years old\nan igneous intrusion from a 250 - million - year - old volcano eruption\na homo erectus skeleton thought to be around 800,000 years old\nstromatolites containing 3 - billion - year - old bacterial mats\nthe sediments of the cretaceous sea where they are now exposed on land

Answer

Brief Explanations:

Radioactive carbon - dating (carbon - 14 dating) is effective for dating organic materials that are less than about 50,000 - 60,000 years old. A mastodon is an organic material and its age (15,000 years) is within the effective range of carbon - 14 dating. Igneous intrusions, very old fossils like Homo erectus (800,000 years), 3 - billion - year - old stromatolites, and Cretaceous sea sediments are either inorganic or too old for carbon - 14 dating.

Answer:

A. A mastodon that is about 15,000 years old