Why was silt an important resource to the people of mesopotamia, and what adaptation did the people have to make to ensure its supply?
it was easy to shape into storage pots. people had to gather it quickly to ensure its supply.
it provided a sturdy foundation for homes. people had to control where it was deposited to ensure its supply.
it mixed well with clay to make mud bricks. people had to water it to ensure its supply.
it fertilized the soil. people had to manage floodwaters to ensure its supply.

It provided a sturdy foundation for homes people had to control where it was deposited to ensure its supply ( B )

Explanation:

Mesopotamia were having an overwhelming supply of silt been deposited on the banks of the river every year by the flood that brings waters to the banks. this silt were very rich and fertile for agriculture.

The availability of silt was very important for homes and the people had to control where it was deposited in order for it not to obstruct man-made irrigation system. Mesopotamia is in the middle east which means most farms were irrigated by man-made systems. the silt helped the farmers who used them to produce good agricultural produces.

i think it's severe storms but i might be wrong