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

Author Question: In the 1950s a plot of the position of the magnetic north pole through time revealed that A) ... (Read 82 times)

serike

  • Hero Member
  • *****
  • Posts: 542
on: Jul 29, 2018
In the 1950s a plot of the position of the magnetic north pole through time revealed that
 
  A) either the magnetic poles had migrated through time or the continents had moved.
  B) polar magnetization varied from pole to pole.
  C) over the past 500 million years the geographic poles changed position at least once or twice.
  D) all of the above.

Question 2

What are glacial striations, and how did Wegener use them to support his hypothesis of continental drift?
 
  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

peter

  • Sr. Member
  • ****
  • Posts: 330
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: A

Answer to Question 2

Answer: Glacial striations are gouges or grooves that scratch the ground surface as a glacier moves over the land surface. They reveal the direction of ice flow. Wegener used striations on several different continents to show that at one time the continents had been joined together.


serike

  • Hero Member
  • *****
  • Posts: 542
Reply #2 on: Jul 29, 2018
Both answers were spot on, thank you once again


peter

  • Sr. Member
  • ****
  • Posts: 330
Reply #3 on: Jul 29, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

Did you know?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

Did you know?

Medication errors are three times higher among children and infants than with adults.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

The salivary glands, parotid, sublingual, and submandibular. This image shows the position of each g The salivary glands, parotid, sublingual, and submandibular. This image shows the position of each g
The 1993 “Rain Machine”over the North-Central U.S The 1993 “Rain Machine”over the North-Central U.S
Mobilize neck in wavelike motion. Return the head to a neutral position facing upward. Apply ... Mobilize neck in wavelike motion. Return the head to a neutral position facing upward. Apply ...
Testing patellar reflex, client in a sitting position Testing patellar reflex, client in a sitting position
Time Line for Evolution of the Universe Time Line for Evolution of the Universe
Disitive Time For Fish Disitive Time For Fish
Video: Glycolysis Animation

For a complete list of videos, visit our video library