What artifacts and evidence suggest that Harappa and Mohenjo-Dara were busy, thriving cities?
The artifacts and evidence in Harappa and Mohenjo-Dara recognized as well-planned town because their roadways were built out in a grid layout, connecting at right angles.
Aftifacts:
Harappan uses dockyards, granaries, warehouses, brick platforms, and protective walls.
Mohenjo-Dara uses fired and mortared brick; some incorporated sun-dried mud-brick and wooden superstructures.
Evidence:
Harappan uses advanced architecture with dockyards, granaries, warehouses, brick platforms, and protective walls.
Mohenjo-Dara studys the ruins of Mohenjodaro, we see that the city was carefully planned.