|
Title: Recent evidence suggests that Mars once had a global magnetic field. Assuming th Post by: killian on Apr 29, 2014 Recent evidence suggests that Mars once had a global magnetic field. Assuming this is true, which of the following could explain why Mars today lacks a global magnetic field like that of Earth?
A) Mars's interior has cooled so much its molten core layer no longer undergoes convection. B) Mars rotates much slower than the Earth. C) The Martian core is made of rock, while Earth's core is made of metal. D) Mars is too far from the Sun to have a global magnetic field. Title: Re: Recent evidence suggests that Mars once had a global magnetic field. Assuming th Post by: padre on May 12, 2014 Content hidden
Title: Re: Recent evidence suggests that Mars once had a global magnetic field. Assuming th Post by: killian on May 12, 2014 Thanks sir
|