« previous next »

Author Question: The average polarity interval between magnetic reversals over the last 15 million years has been ... (Read 100 times)

Charlie

  • Hero Member
  • *****
  • Posts: 640
on: Jul 16, 2018
The average polarity interval between magnetic reversals over the last 15 million years has been
 
  A) 20,000 years.
  B) 200,000 years.
  C) 2,000,000 years.
  D) 2,000 years.

Question 2

The magnetic north pole migrates about
 
  A) 40 km per decade.
  B) 40 cm per day.
  C) 40 m per month.
  D) 40 km per year.


helenmarkerine

  • Sr. Member
  • ****
  • Posts: 324
Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

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?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Did you know?

When taking monoamine oxidase inhibitors, people should avoid a variety of foods, which include alcoholic beverages, bean curd, broad (fava) bean pods, cheese, fish, ginseng, protein extracts, meat, sauerkraut, shrimp paste, soups, and yeast.

This older woman is exploring new avenues of enjoyment as she avoids stagnation in her later years This older woman is exploring new avenues of enjoyment as she avoids stagnation in her later years
New Magnetic Cycle New Magnetic Cycle
Examples of Impacts Associated with Different Amounts of Global Average Temperat Examples of Impacts Associated with Different Amounts of Global Average Temperat
Mount Pinatubo caused ~1˚C cooling for up to 5 years Mount Pinatubo caused ~1˚C cooling for up to 5 years
Sketch a graph of the function h(x), by hand on the following interval: Sketch a graph of the function h(x), by hand on the following interval:
Prevalence of good health in Canadians aged 65 years and older Prevalence of good health in Canadians aged 65 years and older
Video: Cytotoxic T cell receptors, activation, proliferation, differentiation & action

For a complete list of videos, visit our video library