They have made many products and continuously improve their products to fit the needs of the consumers
I think that owning wild animals isn’t a great idea. they have their own space that they need to be to live and fully develop. if they aren’t in that area, it can end up being a bad habit for them to live in.
It was that "Flat land with poor drainage led to salinization from irrigation waters," that was a factor in the decline of Sumer, since this led to a build up of salt in the soil, which greatly reduced agricultural output.
The Great Depression happened socially