The four main of what? can I get more of the question.
Answer:
you to put the article srry man but hmu when u have it
The answer is B, in reality the Germans were years behind the Americans in atomic bomb creation.
Answer: silk, spices, tea, cotton, ivory, wool, metals, and ideas
Explanation: dats just the answers that came off the top of my head lol brainliest plz
The north did not wont slavery and the south did