This topic contains a solution. Click here to go to the answer

Author Question: What hypothesis has been presented for the close parallel relationship of the magnetic field and the ... (Read 14 times)

bobbie

  • Hero Member
  • *****
  • Posts: 592
What hypothesis has been presented for the close parallel relationship of the magnetic field and the rotation axis?
 
  A) Rotation causes spiraling convection currents in the outer core.
  B) Rotation causes spiraling convection currents in the outer mantle.
  C) Rotation causes spiraling convection currents in the inner mantle.
  D) Rotation causes spiraling convection currents in the inner core.

Question 2

What is a possible effect of a magnetic reversal on Earth's organisms?
 
  A) Species become extinct as they lose their navigational ability.
  B) Organisms are subjected to greater amounts of cosmic radiation.
  C) Organisms are subjected to greater amounts of radioactivity.
  D) Organisms will change their habitats with the accompanying climate change.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

k2629

  • Sr. Member
  • ****
  • Posts: 357
Answer to Question 1

Answer: A

Answer to Question 2

Answer: B




bobbie

  • Member
  • Posts: 592
Reply 2 on: Jul 16, 2018
Gracias!


recede

  • Member
  • Posts: 315
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Did you know?

Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.

Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

For a complete list of videos, visit our video library