Question

aurors borealis and australis - which occur in north and which in south and a easy way to remember it.

Answer 1

aurora borelis occur in north and aurora austarlis occur in south. austalia is in south so austrlis occur in south and the left one in north.

Answer 2

aurora australis in south pole and aurora borealis in north pole
you can remember in this way-australis is in south and Australia also in south and the one which left i.e-aurora borealis is in north pole therefore.