2. What do you understand by the term ‘geomagnetism’? What causes the earth to behave as a magnet? Has earth’s magnetic field changed in it’s geological past? Discuss its implications. Posted by Categories Uncategorized Date August 24, 2016 Comments 120 comments [New Batch] IASbaba’s Courses- UPSC 2021 : e-CLP, ILP, AIPTS, TLP Connect- ADMISSIONS OPEN! -> Click Here Share: