Question

A compass has a small balanced pointer that always points North-South. This is because
the compass needle points to the cold places.
B) the stars exert a force on the needle
C gravity makes the needle point this way.
D the earth has a magnetic field and the pointer is magnetic.
GPT-4o mini
The correct explanation for why a compass needle points North-South is:

**D) the Earth has a magnetic field and the pointer is magnetic.**

The compass needle is a small magnet that aligns itself with the Earth's magnetic field, which is why it points towards magnetic north.

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