Question

how will we understand the difference between prime meridian and line of illumination​

Answer 1

Answer:

Prime Meridian - the longitude of zero degree passing through Greenwich near London .

Line of Illumination - it is the imaginary line which shows clearly the demarcation between the phenomena of day and night on the earth .

Answer 2

Answer:

A prime meridian is the meridian in a geography coordinate system at which longitude is defined to be 0°.Together, a prime meridian and its anti-meridian form a great circle.This great circle divides a spheroid into two hemispheres.

Circle of illumination is an imaginary line that separates light from darkness and day from night.Earth's axis refer to an imaginary line going through the centre of the earth from top to bottom.

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