Question

Which of the following is called the Prime Meridian?
A) 0° longitude
B) 90° longitude
C) 120° longitude
D) 150°longitude

Answer 1

Hint: A meridian is the half of an imaginary great circle on the Earth's surface, a coordinate line linking locations of equal longitude measured in angular degrees east or west of the Prime Meridian and terminated by the North Pole and the South Pole.

Complete answer:
In a geographic coordinate system, a prime meridian is a meridian at which longitude is defined as 0°. A great circle is formed when a prime meridian and its anti-meridian are joined together. A spheroid is divided into two hemispheres by this huge circle.

The line traced north to south at 0° (0 degrees) longitude is known as the prime meridian.
The prime meridian separates the Eastern and Western hemispheres of the Earth. At 0° (0 degrees) longitude, the prime meridian is located.

90 Degrees Longitude East Lake, often known as 90°E Lake, is an Antarctic lake. It is the second-largest known sub glacial lake in Antarctica, behind Lake Vostok, with a surface size of around 2,000 square kilometres.

The 120 degrees west of Greenwich meridian is a line of longitude that runs from the North Pole to the South Pole, passing through the Arctic Ocean, North America, the Pacific Ocean, the Southern Ocean, and Antarctica.

The meridian 150 degrees east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Asia, the Pacific Ocean, Australasia, the Southern Ocean, and Antarctica to the South Pole.

Therefore the correct answer is option ‘A’.

Note: As we know that the meridian is an important aspect, The Prime Meridian is significant because it divides the Earth into two hemispheres (Eastern and Western). Another reason could be that it is the zero degrees beginning point for the degrees.