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

Author Question: Which of the following radioactive isotopes would be best for age-dating a rock from 50,000 years ... (Read 112 times)

cnetterville

  • Hero Member
  • *****
  • Posts: 547
on: Jul 14, 2018
Which of the following radioactive isotopes would be best for age-dating a rock from 50,000 years ago?
 
  A) uranium-238
  B) carbon-14
  C) potassium-40
  D) thorium-232

Question 2

Who first formulated the principle of uniformitarianism?
 
  A) Aristotle
  B) Lyell
  C) Steno
  D) Hutton


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

cassie_ragen

  • Sr. Member
  • ****
  • Posts: 347
Reply #1 on: Jul 14, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: D


cnetterville

  • Member
  • Posts: 547
Reply 2 on: Jul 14, 2018
Great answer, keep it coming :)

anyusername12131

  • Member
  • Posts: 327
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

The Upper Cave at Zhoukoudian yields ages of about 25,000 years for Homo sapiens. The Upper Cave at Zhoukoudian yields ages of about 25,000 years for Homo sapiens.
Review of Health and Illness over the Adult Years Review of Health and Illness over the Adult Years
Checklist of Developmental Skills: Birth to 5 years Cont. Checklist of Developmental Skills: Birth to 5 years Cont.
Approximately 40 percent of farmers in the United States are 55 years old or older Approximately 40 percent of farmers in the United States are 55 years old or older
In Canada, 2/3 women and over 1/2 of men 55 to 64 years of age are grandparents In Canada, 2/3 women and over 1/2 of men 55 to 64 years of age are grandparents
Isotopes and Radioisotopes Isotopes and Radioisotopes
Video: Interview with an Anorexic Woman (Part 2 of 2)

For a complete list of videos, visit our video library