Question

degrees east and west of the prime meridian are measured by
○ boundaries,
○ longitude,
○ latitude,
○ dots.

Explanation:

To solve this, we analyze each option:

• "boundaries" are for dividing areas, not measuring degrees relative to the prime meridian.
• "longitude" is defined as the angular distance east or west of the prime meridian, measured in degrees.
• "latitude" measures degrees north or south of the equator, not related to the prime meridian.
• "dots" have no relation to measuring geographic coordinates.

Answer:

B. longitude