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

Author Question: Which dating method was used to date the famous Mt Vesuvius eruption of AD 79? a. Carbon 14 b. ... (Read 94 times)

Ebrown

  • Hero Member
  • *****
  • Posts: 567
Which dating method was used to date the famous Mt Vesuvius eruption of AD 79?
 
  a. Carbon 14
  b. Paleomagnetism
  c. Potassium-argon/ 40Ar/ 39AR
  d. Dendrochronology
  e. Biostratigraphy

Question 2

If an isotope has a half-life of 4 billion years, then in 4 billion years
 
  a. all of the original amount will have decayed.
  b.  of the original amount will still remain.
  c.  of the original amount will still be present.
  d. all of the original amount will still be present.
  e. none of these



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

emsimon14

  • Sr. Member
  • ****
  • Posts: 344
Answer to Question 1

C

Answer to Question 2

C





 

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

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?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

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 25% of all reported medication errors result from some kind of name confusion.

For a complete list of videos, visit our video library