Im not positive but im pretty sure it C
The following reasons are put forward for its abrupt end: The neighboring desert encroached on the fertile area and made it infertile. Regular floods destroyed the area. Aryan invaders killed people and destroyed the Indus Valley Civilization.
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The First airplane's were made by the Wright brothers in 1903
No it wasn't THE first suspension bridge in america. THE first suspension bridge in america was the wire bridge at fairmount in philadelphia.
A because that the line of where the prime meridian on a map would be.
