Which statement about the maria on the Moon is FALSE?

The statement that some maria have definite magnetic fields is false. Maria, which are the large, dark basaltic plains on the Moon formed by ancient volcanic eruptions, do not show significant evidence of having magnetic fields. Unlike the Earth, the Moon has a very weak magnetic field overall, and while some specific areas may exhibit local magnetic anomalies, these are not directly associated with the maria themselves.

On the other hand, the maria are considered younger than the highlands of the Moon; they cover older craters, which is a clear indication of their relative youth in geological terms. These facts contribute to our understanding of the Moon's geological history and the processes that shaped its surface. Therefore, the focus on the magnetic fields emphasizes how the maria lack the characteristics seen on more magnetically active celestial bodies.