The second one: For thousands of years all over the world, people had enslaved other people for variety of reasons.
Answer: a. copper
Explanation: due to the fact it wasn't even discovered during that time frame
Answer:
When World War II ended, the United States was in better economic condition than any other country in the world. ... Building on the economic base left after the war, American society became more affluent in the postwar years than most Americans could have imagined in their wildest dreams before or during the war.
Explanation:
Answer:
I believe what you are looking for is concurrent powers.
Explanation:
These are powers retained by state governments.