Which condition did the factory act of 1819 try to eliminate from manchester's industries?

The 1819 Act was enacted to limit the number of hours children work in factories (12 hours and no night working) and the abolishion of employment of children less than 9 years old. This was necessitated by the negative impact of the factories' conditions on these children's long-term health, during a time when children were allowed to work.

that would be called plucking : )

explanation:

''plucking, also referred to as quarrying, is a glacial phenomenon that is responsible for the erosion and transportation of individual pieces of bedrock, especially large "joint blocks". as a glacier moves down a valley, friction causes the basal ice of the glacier to melt and infiltrate joints (cracks) in the bedrock."