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Question
The approximate circumference of the Earth is
Options:
A .  25,000 km
B .  13,000 km
C .  30,000 km
D .  20,000 km
Answer: Option A
Answer: (a)
The circumference of the earth at the equator is 24,901.55 miles (40,075.16 kilometres). But, if we measure the earth through the poles the circumference is a bit shorter - 24,859.82 miles (40,008 km).
Thus, the earth is a tad wider than it is tall, giving it a slight bulge at the equator. This shape is known as an ellipsoid or more properly, geoid (earth-like).

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