43ʳᵈ B.P.S.C. (Pre) 1999
The basis of deciding the standard time of any place is–
aLongitude
bLatitude
cInternational Date Line
dPrime Meridian✓ Correct
Explanation
The Prime Meridian is also known as the International Meridian or Greenwich meridian. It passes through the Royal Observatory at Greenwich in England. This meridian passes through the following countries: (1) United Kingdom, (2) France, (3) Spain, (4) Algeria, (5) Mali, (6) Burkina Faso, (7) Togo, and (8) Ghana.
general-science