Author Question: By putting events in order, scientists can use the order to determine how long ago certain geologic ... (Read 82 times)

saraeharris · **on:** Jul 16, 2018

By putting events in order, scientists can use the order to determine how long ago certain geologic events took place.

Indicate whether this statement is true or false.

Question 2

A deposit of volcanic tuff contains the isotope potassium-40, which is slowly decaying into argon-40. How might the apparent age of the sample be affected if the volcanic tuff is heated and remains heated for a long period of time?

A) The rate of decay will speed up.
B) The sample will appear older than it really is.
C) The sample will appear younger than it really is.
D) Heat will have no effect on the age of the sample.