The quality of building in the Indus Valley cities declined. Gradually, the great cities fell into decay.
The cities on Indus were well planned out, they had precise planning of roads and buildings, also had sewers. This was different, because other civilizations (books example; Mesopotamia) had buildings and roads all over, unplanned areas, and everything was disorganized.
one of the main city is Harappa. It is now in Pakistan.
The Illumanti reptile aliens abducted and probed the indus valley.
It received it's rich silt from the Indus River. When it flooded it produced an nutrient enriched mud called silt that was good for farming and agriculture in the Indus River Valley.
Barley was the main grain crop. however there are evidences of other varieties of grains as well.
They both have evil gods and goddess.
Chenab, Ravi, Bias, Sutlej and Jhelum. These constitute the mythological five rivers
that Lord Siva trapped in his hair to prevent flooding and harm to the people. Hence He is also called Panchapakesan and Panch Nadeeswarar.
Yes, like all the other urban civilizations, the indus valley was also fertile.