Which of the following statements is/are correct with reference to the Polar wander?
A. True polar wander represents the shift in the geographical poles relative to Earth’s surface, after accounting for the motion of the tectonic plates.
B. It can be used to measure the degree to which Earth’s magnetic poles have been observed to move relative to the Earth’s rotation axis.
C. Both A & B
D. None of these
Explanation:
The latest research has that the Earth’s North and South poles have moved since the mid-1900s. They have been affected due to the melting of glaciers and other factors caused by humans, namely climate change. True polar wander represents the shift in the geographical poles relative to Earth’s surface, after accounting for the motion of the tectonic plates. This motion is caused by the rearrangement of the mantle and the crust in order to align the maximum inertia with the current rotation axis. It can be used to measure the degree to which Earth’s magnetic poles have been observed to move relative to the Earth’s rotation axis.
