A common imaginary boundary between civilization and the Australian outback is the "Black Stump". The outback is sometimes referred to as "beyond the Black Stump".
a imaginary line between regions
Yes. It is called a state line.
an imaginary line that divides territories.
Well, the equator marks the imaginary boundary between them.
It is called the Line of Demarcation.
The boundary is between the Australian Plate and the Pacific Plate.
-transform boundary -convergent boundary -subduction zoone -divergent boundary -mid-ocean ridge -rift valley ...these are some possible answers to your question.
That which indicates of fixes a limit or extent, or marks a bound between provinces; separating line whether real or imaginary.
New Zealand is situated on the active boundary of the Pacific and Australian tectonic plates.
The Himalayas are on the boundary between the Eurasian Plate and the Indo-Australian Plate.
the difference between a political and physical map is that political maps are the imaginary boundaries (ex. states boundary for ct is a political boundary) and a physical map shows rivers, bodies of water, mountains, ect. (ex. map of rivers is a phsical map.
The International Date Line (IDL) is an imaginary line of demarcation on the surface of Earth that runs from the North Pole to the South Pole and demarcates the boundary between one calendar day and the next. Source: Wikipedia