Which statement correctly describes Magnetic North and Grid North?

• A. Magnetic north is found through a north-seeking needle of a magnetic instrument whereas grid north is the north established with the vertical grid lines on a map.
• B. Magnetic north is accurate only at equator.
• C. Grid north is the same as true north everywhere.
• D. Magnetic north and grid north always differ by 90 degrees.

Answer: (A)

Magnetic north and grid north come from different references. Magnetic north is the direction a compass needle points, which aligns with the Earth's magnetic field and can shift depending on where you are and over time. Grid north, on the other hand, is the north direction defined by the vertical grid lines on a map, set by the map’s projection and fixed for that map.

So the statement is right because it captures the core distinction: a magnetic instrument gives you magnetic north, while a map’s grid defines grid north. The other ideas don’t fit because magnetic north isn’t tied to the equator as the only accurate location, grid north isn’t the same as true north everywhere due to projection effects, and there isn’t a universal 90-degree difference between magnetic north and grid north.