Complete the following statement regarding magnetic variation.The charted values of magnetic variation on Earth normally change annually due to:
Domanda 259, General Navigation - ATPL - Airline Transport Pilot license
| Magnetic pole movement causing numerical values at all locations to increase. |
| A reducing field strength causing numerical values at all locations to decrease. |
| Magnetic pole movement causing numerical values at all locations to increase or decrease |
| An increasing field strength causing numerical values at all locations to increase. |
