GENERAL KNOWLEDGE

Detailed explanation-1: -(2) Equator is the only Great Circle, which can be drawn on the Earth’s surface.

Detailed explanation-2: -An equator is an imaginary line around the middle of a planet or other celestial body. It is halfway between the north pole and the south pole, at 0 degrees latitude. An equator divides the planet into a northern hemisphere and a southern hemisphere. Earth is widest at its Equator.

Detailed explanation-3: -Great Circles are lines that split the Earth into equal halves, The Equator is the only latitude while all longitudes are great circles.

Detailed explanation-4: -A great circle has the same boundary and same centre point as its sphere. Great circles are seen on all meridians on Earth. All the lines of longitude meet at the poles, intersecting the Earth in half. Thus a great circle always splits the Earth into two halves, so that the Equator is a great circle.