O
there can be multiple reaskns skme may be:
poor workjng conditons
minimum wage
Answer:
Explanation:
I believe the answer is b? Yes, people back then did need to use advanced tools.
The Concert of Europe was a system of dispute resolution adopted by the major conservative powers of Europe to maintain their power, oppose revolutionary movements, weaken the forces of nationalism, and uphold the balance of power.
Planned economies replaced complete capitalism.
The births and immigrants are equal to deaths and out going migrants.
