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 44 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
Thanks for the timely response, appreciate it

abro1885

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.

Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

Did you know?

According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.

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.

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Defying thousands of years of conventional wisdom, scientists are reporting that it is possible for Defying thousands of years of conventional wisdom, scientists are reporting that it is possible for
Possible Earth 5 billion years from now Possible Earth 5 billion years from now
Older adults may grieve intensely over the loss of a person or situation that has been a part of the Older adults may grieve intensely over the loss of a person or situation that has been a part of the
Checklist of Developmental Skills: Birth to 5 years Cont. Checklist of Developmental Skills: Birth to 5 years Cont.
Stable oxygen isotopes in carbonate Stable oxygen isotopes in carbonate
Rock Type Influences Weathering Rock Type Influences Weathering
Video: Five phases of cardiac cycle & Atrial contraction

For a complete list of videos, visit our video library