Mars's magnetic field is so weak because:
A)it spins much slower than Earth does.
B)its core may no longer be molten.
C)its core contains less iron than our own.
D)All of the above are correct.
E)Both B and C are probable.

Question

Quizplus · Accepted Answer

Mars's weak magnetic field is likely due to a combination of factors. It is believed that Mars's core may no longer be molten, which would prevent the generation of a magnetic field. Additionally, Mars's core is suspected to contain less iron than Earth's, which is another factor that could contribute to its weak magnetic field. Mars's magnetic field is weak because its core has likely cooled and solidified, which means it may no longer be molten. Additionally, studies suggest that Mars has a smaller core and less iron than Earth, which further contributes to the weakness of its magnetic field. Therefore, option E - Both B and C are probable - is the correct choice.

Mars's Magnetic Field Is So Weak Because