The lines passing through points at which the magnetic declination is equal at a given time are called
A)isogonic lines
B)agonic lines
C)isoclinic lines
D)none of these

Question

Quizplus · Accepted Answer

Isogonic lines are the lines that connect points of equal magnetic declination on a map or chart. Magnetic declination is the angle between magnetic north and true north at a specific location, and it changes over time and with location. Isogonic lines help in navigation and compass use by indicating areas with the same magnetic declination.

The Lines Passing Through Points at Which the Magnetic Declination