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 48 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?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

Did you know?

Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Did you know?

When taking monoamine oxidase inhibitors, people should avoid a variety of foods, which include alcoholic beverages, bean curd, broad (fava) bean pods, cheese, fish, ginseng, protein extracts, meat, sauerkraut, shrimp paste, soups, and yeast.

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

Old Time Farm Shepherd Old Time Farm Shepherd
Discovering Fossils 26-30 Discovering Fossils 26-30
Elizabeth Murray, Just in Time. Elizabeth Murray, Just in Time.
With fewer men than women in college, is it time to consider affirmative action for men? With fewer men than women in college, is it time to consider affirmative action for men?
Similar Fossils on Different Continents Similar Fossils on Different Continents
The time at which the mailman delivers the mail to Ace Bike Shop follows a normal distribution ... The time at which the mailman delivers the mail to Ace Bike Shop follows a normal distribution ...
Video: Premenstrual Syndrome

For a complete list of videos, visit our video library