Will earths magnetic poles move if the magnetic declination is given a certain location will what?

Yes, Earth's magnetic poles do move over time due to changes in the planet's molten outer core, which generates the magnetic field. This movement is known as geomagnetic secular variation. Magnetic declination, the angle between magnetic north and true north, is influenced by the position of the magnetic poles. Thus, as the poles shift, the magnetic declination at a specific location will also change.