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

Author Question: What is the name for a period of time when the magnetic field is oriented in the opposite direction? ... (Read 208 times)

Haya94

  • Hero Member
  • *****
  • Posts: 558
on: Jul 16, 2018
What is the name for a period of time when the magnetic field is oriented in the opposite direction?
 
  A) a magnetic reversal
  B) a reversed polarity interval
  C) a normal polarity reversal
  D) an underage polarity

Question 2

Approximately how long has it been since the last magnetic reversal?
 
  A) 1,780 years
  B) 17,800 years
  C) 780,000 years
  D) 1.768 million years


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 16, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: C


Haya94

  • Member
  • Posts: 558
Reply 2 on: Jul 16, 2018
YES! Correct, THANKS for helping me on my review

rachel

  • Member
  • Posts: 323
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Visual Field Defects Visual Field Defects
New Magnetic Cycle New Magnetic Cycle
Remedies for insomnia include increased physical exercise and time spent outdoors. Remedies for insomnia include increased physical exercise and time spent outdoors.
Milankovitch cycles interact over time Milankovitch cycles interact over time
Middle adults usually have more time to focus attention on their relationships Middle adults usually have more time to focus attention on their relationships
Embryonic Period Embryonic Period
Video: Transcription—A molecular view

For a complete list of videos, visit our video library