which phrase describes carbon - 14 dating? uses the rate at which nitrogen - 14 decays into carbon - 14…

which phrase describes carbon - 14 dating? uses the rate at which nitrogen - 14 decays into carbon - 14 dates the remains of organisms to determine when they died measures the number of unstable elements in ancient volcanic rocks determines the age of ancient fossils older than 50,000 years old

which phrase describes carbon - 14 dating? uses the rate at which nitrogen - 14 decays into carbon - 14 dates the remains of organisms to determine when they died measures the number of unstable elements in ancient volcanic rocks determines the age of ancient fossils older than 50,000 years old

Answer

Brief Explanations:

Carbon - 14 dating is a radiometric dating method. It measures the amount of remaining carbon - 14 in the remains of organisms. Since carbon - 14 decays at a known rate, it can be used to determine when an organism died. Nitrogen - 14 does not decay into carbon - 14 (it's the other way around in the atmosphere), it's not used for dating ancient volcanic rocks as those are dated by other methods like potassium - argon dating, and carbon - 14 dating is not very reliable for fossils older than about 50,000 years as the amount of carbon - 14 left is too small to measure accurately.

Answer:

dates the remains of organisms to determine when they died