Answer to Question 1
False
Answer to Question 2
A compass needle points to the magnetic north pole because of the persistent magnetic field caused by the movement of molten metal in the Earth's outer core. As new seafloor is produced at spreading centers, the magnetic minerals (which are naturally occurring in basaltic magma) align with the Earth's magnetic field. As the new rock cools and hardens, the orientation of the Earth's magnetic field at that particular time is frozen and records information like a fossil does. Scientists use this information to measure spreading rates and are able to create detailed charts of the ocean floor dating back about 200 million years.