The boundary line under the basket is known as the baseline.
Circumfrence
Durand Line ,,
out of bounds
also known as the baseline, it's the out of bounds lines right behind the basketball hoops.
the back boundary line, and the long service line
The boundary where vegetation ends is called the timber line or tree line.I cannot find proof of this but I think it is simply called the 'TREE LINE' - sincere apologies if this is not correct.
The Himalayan Mountains is the natural boundary between China and India. China and India have fought battles over disputed parts of this boundary.
It is called a divergent plate boundary.
The line that seperates one air mass from another is called a boundary.
Mason Dixon Line.
Tree line
Yes. It is called a state line.