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

Author Question: What hypothesis has been presented for the close parallel relationship of the magnetic field and the ... (Read 15 times)

bobbie

  • Hero Member
  • *****
  • Posts: 592
on: Jul 16, 2018
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
Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: A

Answer to Question 2

Answer: B


bobbie

  • Member
  • Posts: 592
Reply 2 on: Jul 16, 2018
Great answer, keep it coming :)

nguyenhoanhat

  • Member
  • Posts: 332
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

Did you know?

Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Close-ups of Jupiter’s Atmosphere Close-ups of Jupiter’s Atmosphere
Matching Magnetic Signatures—Stripes Matching Magnetic Signatures—Stripes
Bonobos are close relatives of chimpanzees and of humans. Bonobos are close relatives of chimpanzees and of humans.
For kinship analyses buccal swabs from close family are taken for comparison. For kinship analyses buccal swabs from close family are taken for comparison.
Relationship of the lymphatic system to the cardiovascular system. Relationship of the lymphatic system to the cardiovascular system.
Most catalytic converters are located as close to the exhaust manifold as possible as seen in this ... Most catalytic converters are located as close to the exhaust manifold as possible as seen in this ...
Video: Junction Types - Tight and Adherens Junctions

For a complete list of videos, visit our video library