The Prime Meridian corresponds to which longitude value?

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Multiple Choice

The Prime Meridian corresponds to which longitude value?

Explanation:
Longitudes are measured from zero at the Prime Meridian, the reference line that runs from the North Pole to the South Pole and passes through Greenwich. That line is defined as 0 degrees longitude, so it sets the starting point for measuring east or west to up to 180 degrees. The Prime Meridian, therefore, corresponds to 0 degrees (often shown as 000°). The other options point to different lines: 180° is the opposite side of the globe called the antimeridian, 090° is a quarter-circle away from the Prime Meridian, and 270° is equivalent to 90° west in the common 0–360 notation, not the zero line.

Longitudes are measured from zero at the Prime Meridian, the reference line that runs from the North Pole to the South Pole and passes through Greenwich. That line is defined as 0 degrees longitude, so it sets the starting point for measuring east or west to up to 180 degrees. The Prime Meridian, therefore, corresponds to 0 degrees (often shown as 000°). The other options point to different lines: 180° is the opposite side of the globe called the antimeridian, 090° is a quarter-circle away from the Prime Meridian, and 270° is equivalent to 90° west in the common 0–360 notation, not the zero line.

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