Question

write the answer in short note pls help urgent ​

Answer 1

Answer:

Greenwich Meridian ( Prime Meridian ) and Anti-Meridian.

Explanation:

Prime Meridian : The meridian through Greenwich (inside Greenwich Park), England, called the Prime Meridian, was set at zero degrees of longitude, while other meridians were defined by the angle at the center of the earth between where it and the prime meridian cross the equator.

Anti-Meridian : occurring before noon : of or relating to the forenoon antemeridian chores at 9 o'clock — compare ante meridiem.