For social studies i know the answer is called a boundary
For social studies i know the answer is called a boundary
cresent crescent
cresent crescent
That would be a cresent moon.
cresent crescent
That would be a cresent moon.
That would be a cresent moon.
That would be a cresent moon.
That would be a cresent moon.
The region of a country bordering on another or a line, barrier, etc., marking such a border is called a frontier. A frontier is also the edge of the settled area of a country.
A leaf's edge is called its margin.
When only the region around the edge of the moon is illuminated by the sun, it is called a "crescent moon." This phase occurs shortly after the new moon, when a small sliver of the moon becomes visible. The illuminated part appears as a thin arc, while the rest of the moon remains in shadow.