Final answer:
False. Mars has a weak magnetic field compared to the Earth, indicating a molten metallic core with electric currents generating the field.
Step-by-step explanation:
False. Mars has a weak magnetic field.
The presence of a magnetic field is an indicator of a planet's molten metallic core and electric currents generated within it. Mars has a weak magnetic field compared to the Earth. While the Earth has a magnetic field strength of 5 × 10-5 T at its surface, Mars has a magnetic field strength of about 3.01 x 10-5 T, which is slightly weaker but still consistent.
One of the effects of a weak magnetic field is that it provides less protection against harmful solar radiation, making Mars a more challenging environment for life as we know it.