Materials such as nickel , cobalt , iron which are attracted by a magnet are called magnetic materials . Materials such as plastic , cotton , wool which are not attracted by magnet are called non -...
it generally depends on the soil content~if it is rich in iron or some other magnetic metals it will magnetize but if it don't it won't..
Yes - in magentic terms, "hardness" = "permanence".
Iron and steel.
because they are...problem??