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

Author Question: Explain how the age of a rock can be determined by radiometric dating. What will be an ideal ... (Read 85 times)

ENagel

  • Hero Member
  • *****
  • Posts: 540
Explain how the age of a rock can be determined by radiometric dating.
 
  What will be an ideal response?

Question 2

Spectroscopy of a star can reveal its temperature, composition, and line-of-sight motion.
 
  Indicate whether the statement is true or false



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

SeanoH09

  • Sr. Member
  • ****
  • Posts: 323
Answer to Question 1

The minerals in rocks contain small amounts of radioactive isotopes (for example carbon-14 or potassium-40). Over time, these isotopes decay into a different, stable element. By precisely counting the atoms of the original isotopes and decay products within a rock, and knowing the decay time (the half-life) of the radioactive isotope, the age can be determined.

Answer to Question 2

TRUE




ENagel

  • Member
  • Posts: 540
Reply 2 on: Jul 27, 2018
Gracias!


lindahyatt42

  • Member
  • Posts: 322
Reply 3 on: Yesterday
:D TYSM

 

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

Did you know?

Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

Did you know?

Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.

For a complete list of videos, visit our video library