They stop buying the taxes
The ancient city of Harappa was considered to be advanced during its time due to multiple characteristics such as: the sheer size of the city (known today as urban); a large network of trade/commerce/transport technology and economy; accuracy of their measurement systems for length and mass; their use of measurements in architectural design, sewerage and drainage systems; innovative metallurgy techniques and manipulation of precious metals (lead, tin, bronze, copper).
Answer:
The Blue Ridge region contains the highest point in the state.
Rocky soil limits large agriculture in the Appalachian Plateau region.
Explanation: