4.6K views · 93 reactions | Why Earth's Outer Core is liquid and Inner Core is Solid? The liquid iron and nickel in the outer core move around soild inner core like a dynamo, creating Earth's magnetic field. This geomagnetic force protects us from harmful solar radiation and guides navigation. #Geoscience #EarthScience #InstaScience #upsc #reelsinstagram | Rohan Tyagi | Facebook

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