The lines that separate countries are called "borders" or "boundaries." These can be natural, such as rivers or mountains, or artificial, often established through treaties or historical agreements. Borders play a crucial role in defining the territorial limits of a country and regulating the movement of people and goods.
parallel lines
Skew lines are lines that lie on separate planes. and do not intercept parallel lines that are sometimes on the same plane, but don't intersect
rope lines
parallel lines
Borders.
The state border.
State boundary lines State delimitation lines. State demarcation lines. shiter
Those lines are called "borders".
There are 10 countries in the world that are known by separate English names.
It is important to keep business and personal calls separate depending on the size of the business and the call volume for the type of service offered. In most cases home business are small enough that separate lines are unnecessary. In other cases the business may be completely "call dependent". In the case of a call dependent business, a dedicated line is necessary to separate business and personal calls.
Those are international borders, which represent the limits of a country's territory. They are often defined by natural features like rivers or mountains, or through agreements between neighboring countries.
intersecting lines
No, Italy and France are separate, adjoining countries.
If the question means, "What do you call the point where two lines cross?" The answer would be "intersection". Otherwise, I would call them 2 intersecting lines.
They are lines that meet at a point and then go their separate ways.
Yemen
The cast of On Separate Lines - 2013 includes: Katie Goebel as Margorie Ben Rollins as Professor Lawrence