Answer as fast as ! i will give you 90 points for answering it ! what have archaeologists working in the indus valley learned about the civilization that once flourished there

Ifound this on google “the existence of agglomeration economies is central to the explanation of how cities increase in size and population, which places the phenomenon on a larger scale. the concentration of economic activity in cities is one reason for their development and growth.” i hope this you for what your looking for.