Answer: They were able to divide the city into two segment. A segment was called the citadel while the other was called lower town, they were both separated by walls.
Explanation:
They were able to divide the city into two segment. A segment was called the citadel while the other was called lower town, they were both separated by walls. Most of the walls were built of fire and mortar brick. The city also had super structures that we're made of sun-dried mud-brick. To fight against flood, their sites were raised or built on hills made by them.
To boast agriculture, they employed some method of irrigation and made tools such as plough. This helps them grow wheat, barley, pulses, rice
