The answer is A.. a way of dividing society into classes with hard boundaries
Answer:
Federalism is a kind of government where the force is split between the public government and other administrative units. It stands out from a unitary government, where a focal position holds the force, and a confederation, wherein states, for instance, are unmistakably prevailing.
Explanation:
During the Industrial Revolution, it was common for children to work in factories, mines, and other industrial occupations. Children as young as four commonly worked. ... Working on dangerous machinery had its consequences as many children were injured in accidents.
Answer:
C)
spread of disease pathogens among urban populations
Explanation: