what is wrong with the sentence "Earth's magnetic field has always run from the North Pole to the South Pole"
Answer (1)
The sentence is partially incorrect. Here's why:Earth's magnetic field has not always run from the North Pole to the South Pole.Magnetic poles are not fixed and have reversed many times throughout Earth's history (geomagnetic reversals).Currently, the magnetic field runs from the South Pole to the North Pole, not the other way around.Corrected sentence:"Earth's magnetic field currently runs from the South Pole to the North Pole, but its polarity has reversed many times throughout the planet's history."Additional facts:- Geomagnetic reversals occur every 200,000 to 300,000 years.- The last reversal happened around 780,000 years ago (Brunhes-Matuyama reversal).- Earth's magnetic field is constantly changing due to movements within the Earth's outer core.
