Answer:
rates in the U.S. dropped to their lowest level since comprehensive records began in 1958
Answer:
Others fell off ladders, slipped on rocks, inhaled silica dust, or suffered from mercury, lead or arsenic poisoning. Many got sick from drinking dirty water and living too close together. Miners faced immediate dangers, as well as health problems that developed over time
Explanation:
They feared a pattern of increased taxation and restricted liberties.
The countrys wanted to compete against each other for power/dominace
I believe it is the last option... "Its political system cannot be easily changed.
