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

Author Question: Briefly explain why it is often difficult to assign a reliable numerical date to a sample of ... (Read 179 times)

moongchi

  • Hero Member
  • *****
  • Posts: 516
on: Jul 14, 2018
Briefly explain why it is often difficult to assign a reliable numerical date to a sample of sedimentary rock.
 
  What will be an ideal response?

Question 2

How does the area of Earth's surface covered by oceans compare with the area covered by continents?
 
  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

meltdown117

  • Sr. Member
  • ****
  • Posts: 326
Reply #1 on: Jul 14, 2018
Answer to Question 1

A sedimentary rock may include particles that contain radioactive isotopes, but the rock's age cannot be accurately determined because the grains that make up the rock are not the same age as the rock in which they occur. Rather, the sediments have been weathered from rocks of diverse ages.

Answer to Question 2

About 71 of Earth's surface is covered in oceans, compared to the remainder covered in continents.


moongchi

  • Member
  • Posts: 516
Reply 2 on: Jul 14, 2018
Great answer, keep it coming :)

debra928

  • Member
  • Posts: 342
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.

Did you know?

You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

People about to have surgery must tell their health care providers about all supplements they take.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

The platypus is very difficult to spot even on the surface of a river. The platypus is very difficult to spot even on the surface of a river.
Mononucleosis is caused by the Epstein–Barr virus. Symptoms of the infectious disease are swollen pa Mononucleosis is caused by the Epstein–Barr virus. Symptoms of the infectious disease are swollen pa
It is difficult to capture the anguish of the children of divorce, but when I read these lines by ... It is difficult to capture the anguish of the children of divorce, but when I read these lines by ...
Please fully explain the answer with steps Please fully explain the answer with steps
Explain the assumptions that must be satisfied in order to validly use the one-way ANOVA ... Explain the assumptions that must be satisfied in order to validly use the one-way ANOVA ...
A 2.000 g sample of water contains 11.19% H by mass and 88.81% O by mass. What mass of H will ... A 2.000 g sample of water contains 11.19% H by mass and 88.81% O by mass. What mass of H will ...
Video: Ear Animation

For a complete list of videos, visit our video library