Why magnetic field of earth changing give reason?
Answers
The Earth works exactly like a magnet.
It also contains a North Pole and South Pole .
The Earth's magnetic field is observed to change with the passage of time .
The polarity of the Earth's Magnetic Field keeps on changing with time.
This phenomenon is called Polarity reversal.
The causes of Polarity reversal are mainly due to changes below the Earth's surface.
Due to tectonic movements and other factors , the core of the Earth is weakening day by day.
Even we are responsible due to the fact that we extract a lot of energy from the Earth in the form of geothermal energy.
Another factor of change is the Continental Drift or the shift in the position of continents over the years.
The magnetic field of the Earth is weakening day by day .
It may become zero after few thousands of years !