Question

Please answer:

1.) for half of the radioisotopes of a certain kind to decay into its more stable isotope, the amount of time required is called the _______.
2.) Radiocarbon dating is typically used to date more recent objects like _______, cloth, wood, and plant fibers.
3.) _______ rocks cannot be accurately dated using isotopic dating because this rock type is formed through the sedimentation of different rocks and mineral fragments.
4.) Using the principle of faunal succession, scientists can determine the age of rocks by the _______ embedded within them.

Respond to the following based on your reading.

5.) Briefly compare and contrast relative dating and absolute dating methods.
6.) 87Rb has a half-life of 47 billion years, while 14C has a half-life of 5,730 years. Which isotope would you use to date a fossil from the Paleozoic Era? Briefly explain your choice.

Answer 1

Answer:

1-52 minutes

2-nil

3-nil

4-nil

5-nil

6-nil

Answer 2

Answer:

1:flashback

2:allusion

3:hard

4:half

5:dating and absolute dating method

6:half life of87Rb is 43.5