This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Geology's best tool for establishing absolute geologic time is a. index fossils. b. radiometric ... (Read 34 times)

tuffie

  • Hero Member
  • *****
  • Posts: 534
on: Jul 28, 2018
Geology's best tool for establishing absolute geologic time is
 a. index fossils.
  b. radiometric dating.
  c. the principle of superposition.
  d. the principle of cross-cutting relationships.

Question 2

Starting with a sample of pure parent radionuclide, what would be the ratio of the parent radionuclide to its daughter after two half-lives have elapsed?
 a. 1 to 1
  b. 1 to 2
  c. 1 to 3
  d. 1 to 4


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Ddddd

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Jul 28, 2018
Answer to Question 1

b

Answer to Question 2

c


tuffie

  • Hero Member
  • *****
  • Posts: 534
Reply #2 on: Jul 28, 2018
Thank you!


Ddddd

  • Sr. Member
  • ****
  • Posts: 334
Reply #3 on: Jul 28, 2018
Always glad to help...


« previous next »
 

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

Did you know?

Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Discovering Fossils 27-30 Discovering Fossils 27-30
For a time Dr. Seuss—Theodor Seuss Geisel—drew political cartoons. This one, published in ... For a time Dr. Seuss—Theodor Seuss Geisel—drew political cartoons. This one, published in ...
An exhaust manifold spreader tool is a tool that is absolutely necessary to use when reinstalling ... An exhaust manifold spreader tool is a tool that is absolutely necessary to use when reinstalling ...
Time course of HIV infection. Time course of HIV infection.
How Does Earth Work? Physical Geology and the Process of Science, 2nd Edition How Does Earth Work? Physical Geology and the Process of Science, 2nd Edition
Time value money Time value money
Video: Covalent bonds - role in the body

For a complete list of videos, visit our video library