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

Author Question: To date relatively young rocks and materials, we use the decay of A) uranium-238 to lead-206. B) ... (Read 104 times)

fbq8i

  • Hero Member
  • *****
  • Posts: 527
on: Jul 29, 2018
To date relatively young rocks and materials, we use the decay of
 
  A) uranium-238 to lead-206.
  B) potassium-40 to argon-40.
  C) carbon-14 to nitrogen-14.
  D) uranium-235 to lead-207.

Question 2

To date the age of Earth, we look for rocks with a high percentage of
 
  A) uranium-235 to lead-207.
  B) uranium-238 to lead-206.
  C) potassium-40 to argon-40.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

steff9894

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: C

Answer to Question 2

Answer: B


fbq8i

  • Hero Member
  • *****
  • Posts: 527
Reply #2 on: Jul 29, 2018
Thank you!


steff9894

  • Sr. Member
  • ****
  • Posts: 337
Reply #3 on: Jul 29, 2018
Always glad to help...


« previous next »
 

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

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.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

The human body produces and destroys 15 million blood cells every second.

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.

More young men than women live in their parents’ homes, though the proportion for both decreases ... More young men than women live in their parents’ homes, though the proportion for both decreases ...
Prolonged abuse leads to production of stress hormones that can lead to a cascade of effects ... Prolonged abuse leads to production of stress hormones that can lead to a cascade of effects ...
The coagulation cascade. Both the intrinsic pathway and extrinsic pathway lead to a common pathway ... The coagulation cascade. Both the intrinsic pathway and extrinsic pathway lead to a common pathway ...
The Hazardous Materials Identification System is used to label containers that hold hazardous ... The Hazardous Materials Identification System is used to label containers that hold hazardous ...
Ice cores also preserve a record of ice sheet growth and decay Ice cores also preserve a record of ice sheet growth and decay
A carbon-14 nucleus decays to a nitrogen-14 nucleus by beta-minus decay. How much energy (in ... A carbon-14 nucleus decays to a nitrogen-14 nucleus by beta-minus decay. How much energy (in ...
Video: Oral Hygiene & Braces Animation

For a complete list of videos, visit our video library