Has there been an activity undertaken on the land done so earnestly to pursue business interests instead of undertaken for pleasure, enjoyment or convenience?
A oes gweithgaredd wedi’i gynnal ar y tir a hynny o ddifrif er mwyn ceisio sicrhau buddiannau busnes, yn hytrach na'i fod wedi’i gynnal er mwyn pleser, mwynhad neu gyfleustra?