Aurangzeb's responsibility:Aurangzeb was largely responsible for the downfall of the empire
It was the Louisiana purchase.
Explanation:
Nonfiction books are grouped together by subject to make it easier to find a book related to a specific topic. The system that most libraries use to organize books was invented by Melvil Dewey and it is called the Dewey Decimal System. Each book is assigned a three-digit call number based on what the book is about.
Sharecroppers were free people and slaves weren't. Slaves didn't "rent" a piece of someone's land and work on it. They were forced to work on land since they were owned by the land owner.
