WORLD HISTORY

HISTORY

ANCIENT CHINA

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Instrument, which uses the earth’s magnetic field to show direction
A
Seismograph
B
Sundial
C
Compass
D
Gunpowder
Explanation: 

Detailed explanation-1: -Compass. A compass is a navigational instrument for determining direction relative to the Earth’s magnetic poles. It consists of a magnetized pointer (usually marked on the North end) free to align itself with Earth’s magnetic field.

Detailed explanation-2: -Compass needles line up with magnetic fields. Since Earth is a magnet, a compass will normally line up with Earth’s magnetic field. Because opposite magnetic poles attract, the magnetic north pole of the compass points toward the magnetic south pole of the Earth.

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