The harappans can be called great architects and engineers

That statement is true

Explanation:

A strong proof for this statement would be their irrigation system. At that time, the harrapans civilization was among the first society who manage to send water to agricultural fields that located far away from water source. (Advanced architectural and engineering skills are needed for this)

Because of this , they managed to eliminated hunger problems and continuously improve their economic strength due to the large amount of crops they're able to sell.

the answer is : the nut cases won't quit battling and their recurrence of flights will going to continue as before despite the fact that the battles are less hazardous now because of their bills have all of a sudden been blunted.   in the falcon dove diversion, two creatures will drive towards one another to crush one another, among the two one will win and other will swerve. in this way, clearly, the battle will be dependably there between two creatures for the assets or mate.