« previous next »

Author Question: Is carbon-14 an appropriate isotope for dating the metamorphic rocks at the bottom of the Grand ... (Read 87 times)

tfester

  • Hero Member
  • *****
  • Posts: 534
on: Jul 14, 2018
Is carbon-14 an appropriate isotope for dating the metamorphic rocks at the bottom of the Grand Canyon? Explain.
 
  What will be an ideal response?

Question 2

After describing India's future potential energy resources, evaluate which seems to be the most promising.
 
  What will be an ideal response?


allisonblackmore

  • Sr. Member
  • ****
  • Posts: 330
Reply #1 on: Jul 14, 2018
Answer to Question 1

Answer: No, it's not. The rocks at the bottom of the Grand Canyon are igneous and metamorphic, and they are also really, really old. Carbon-14's usefulness is limited to living things (which consume carbon-14 every time they photosynthesize or eat) from the relatively recent past (because carbon-14 has such a short half-life, it decays very quickly over geologic time).

Answer to Question 2

Answers should include coal, oil, nuclear, hydroelectric, and imported sources.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Did you know?

The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

Everyone has one nostril that is larger than the other.

Earth’s history spans 4.5 billion years. Geologists and paleontologists have pieced together the his Earth’s history spans 4.5 billion years. Geologists and paleontologists have pieced together the his
Compression ratio is the ratio of the total cylinder volume (when the piston is at the bottom of ... Compression ratio is the ratio of the total cylinder volume (when the piston is at the bottom of ...
Atmospheric carbon dioxide concentrations in ppm Atmospheric carbon dioxide concentrations in ppm
Income per Capita versus Income of the Bottom Quintile Income per Capita versus Income of the Bottom Quintile
Superposition Is Well Illustrated in the Grand Canyon Superposition Is Well Illustrated in the Grand Canyon
In Maslow's view, needs operate from the bottom up in this needs hierarchy In Maslow's view, needs operate from the bottom up in this needs hierarchy
Video: Bone Healing Animation

For a complete list of videos, visit our video library