Where's the article though?
The main reason why it is important to maintain a balance between state and national authority in a federal system is so the federal government does not become too powerful and subsequently tyrannical. By ensuring that the states maintain a great deal of power this is far more unlikely to happen.
Answer:
It was dangerous and unsanitary
Explanation:
Women’s hair dresses and limbs would get caught in machines. They were called sweatshops and they are why we have labor laws
Explanation:
much of the knowledge written on them may have disappeared