This topic contains a solution. Click here to go to the answer

Author Question: Why does a potassium-argon dating time scale reset during heating? A) Expansion of the crystal ... (Read 188 times)

sarasara

  • Hero Member
  • *****
  • Posts: 521
Why does a potassium-argon dating time scale reset during heating?
 
  A) Expansion of the crystal structure may permit the loosely caged argon atoms to escape.
  B) Reduction of the crystal structure may permit the loosely caged argon atoms to escape.
  C) It gets so hot that it throws off the time scale.
  D) This does not happen.

Question 2

What does a radioactive-isotope aging test on a rock determine?
 
  A) the age of the rock since metamorphism
  B) the date of formation of the rock-forming minerals
  C) the length of time the rock has existed in its location
  D) the age of the rock since sedimentation



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

mochi09

  • Sr. Member
  • ****
  • Posts: 335
Answer to Question 1

Answer: A

Answer to Question 2

Answer: B




sarasara

  • Member
  • Posts: 521
Reply 2 on: Jul 16, 2018
Wow, this really help


cdmart10

  • Member
  • Posts: 332
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Did you know?

The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

For a complete list of videos, visit our video library