The herd of pronghorn should be trapped by this bluff, a very natural boundary.
it your mom
I hate transform boundaries!!
there is a boundary i between America and Canada
I hate transform boundaries!!
I'm not familiar with that term.
The treeline made a boundary between my land and my neighbor's property.Countries often fight over a boundary.The boundary was marked with red flags.
There is not an international border between Europe and Asia
A natural boundary is a boundary that is defined by natural features, such as a strait, a mountain range etc. A physical boundary is can be an imaginary boundary that is drawn on a map, which is not shown in real life, something like a political boundary.
natural
this apple is natural
The biggest natural resource in the country was timber. The natural resource to use in that situation was coal.
A line of demarcation is used to denote a boundary , or separation, between two areas. An example of this term used in a sentence would be, "Hadrian's Wall established a line of demarcation between Roman settlements in England and the wild men of Scotland. "