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

Author Question: Radiometric dating is based on A) decay of uranium-238 to lead-206. B) sequence of rocks and the ... (Read 67 times)

bobbie

  • Hero Member
  • *****
  • Posts: 592
on: Jul 29, 2018
Radiometric dating is based on
 
  A) decay of uranium-238 to lead-206.
  B) sequence of rocks and the relative position of one layer to another.
  C) proportions of radioactive isotopes and their decay products.
  D) the half-life of radioactive atoms.

Question 2

What type of igneous formation would agree with the principle of superposition?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jjorrostieta

  • Sr. Member
  • ****
  • Posts: 298
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: C

Answer to Question 2

Answer: Lava flows. When volcanoes or fissures erupt, lava flows outward; with each eruption new lava flows on top of older lava flows. Although magma also flows, magma can intrude between existing layers.


bobbie

  • Member
  • Posts: 592
Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

gcook

  • Member
  • Posts: 343
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

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?

The human body produces and destroys 15 million blood cells every second.

Radioisotope dating of fossils. Radioisotope dating of fossils.
Blood-typing and cross-reactions: The blood type depends on the presence of surface antigens (agglut Blood-typing and cross-reactions: The blood type depends on the presence of surface antigens (agglut
Evidence-based practice: skin assessment Evidence-based practice: skin assessment
Figure 7.1 shows the rapid decline in the trust of Americans in government since the 1960s. This de Figure 7.1 shows the rapid decline in the trust of Americans in government since the 1960s. This de
Continuum of aggression. Based on an unpublished figure by Joanne DeSanto Iennaco. Continuum of aggression. Based on an unpublished figure by Joanne DeSanto Iennaco.
National lead measurements, 1984 - 2008 National lead measurements, 1984 - 2008
Video: Pores and Ion Channels

For a complete list of videos, visit our video library