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What is the primary function of a magnetic compass?

ATo measure distance traveled
BTo measure air temperature
CTo measure travel speed
DTo indicate direction using Earth's magnetic field

Explanation

A compass contains a small magnetized needle that aligns itself with Earth’s magnetic field, pointing toward magnetic north. Sailors and travelers used compasses for centuries for navigation, especially before satellite-based systems like GPS became available. Earth’s magnetic field is generated by the movement of molten metal in its outer core. Explore more Everyday Science MCQs on mcqstutor to keep practicing.

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