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Stratovolcanoes are common at subduction zones, forming chains along plate tectonic boundaries where oceanic crust is drawn under continental crust. Examples are the Andes and the Aleutian Islands.
A field map could show field boundaries and be of a scale 1:25 000. - popular with walkers in the UK. It could also be a map drawn to show plant, mineral and animal distribution in a small area.
On average, time zones are 15 degrees of longitude wide. There are 360 degrees in a circle, and 24 time zones (actually, there are several more that are a half-hour off of the others) so each time zone "ought to be" 15 degrees wide.However, the boundaries between time zones are anything EXCEPT straight and even. Even in oceanic areas, the boundaries are drawn more for political and practical reasons than by any measure of consistency.
Usually state lines are drawn as a dot dash dot line.
states!
It caused problems for certain African tribal regions due to colonial boundaries drawn over established borders. On top of tribal issues, people within thoses groups either accepted the colonial powers or revolted.
Geometric boundaries
By the countries that occupied them in the 1800's
They led to unstable goverments
poorly drawn maps cause them to argue about boundaries
Lolwut.
Most boundaries were drawn after looking at where different ethnic groups and tribes lived.
State legislatures in each state are responsible for drawing congressional district boundaries. There are 435 congressional districts in the United States.
Ohio
Yes. The word national implies that boundaries are drawn by citizenship.
The European powers, when agreeing on their spheres of influence in the Berlin Congress of 1885 had to create boundaries, because Africa was a collection of thousands of tribal lands that - certainly south of the Sahara - simply did not know the concept of nationality, nor the idea of fixed boundaries. The 'natural' boundaries of tribal lands were often hotly contested and the ubiquitous slavery all over Africa (long after the 'Western' nations had abandoned it) was a result of those endless tribal conflicts.The European-drawn boundaries had the result - that by the way for the most part only became a problem after the nations' independence around 1960 - that traditionally hostile tribes were now thrown together in one nation-State and forced to cooperate and divide power peacefully. Also, the European boundaties sometimes cut straight across tribal lands, causing a tribe to be divided over two States.