List three problems that were found in poor neighborhoods during the progressive era

No running water or sewer systems, unsafe working conditions and the buildings were extremely unsafe

 some answer you can put are 
unsafe buildings
long working hours for families
no garbage collection
no running water or sewer systems

In the late fifteenth century, a major world power that established colonies in the era of old imperialism was france or germany or spain. their colonial activity was mainly limited to america or africa or asia.