In olden days, sailors used to find direction by suspending a piece of a/an___ .
In olden days, sailors used to find direction by suspending a piece of ___ magnet.
Question 1 (iv)
Fill in the blank in the following. In olden days, sailors used to find direction by suspending a piece of ___.
In ancient times, sailors used to find direction by suspending a piece of______.
Initially, sailors used to find direction by suspending a piece of ____.