Answer:
"Uncle Tom's Cabin" has affected the popular opinion on Slavery by demonstrating and providing documentation of a woman's experience being a slave. It opened blind people's eyes to the horrors that people of color experienced at that time, and was very powerful and popular that it sold worldwide. Stowe then toured the United States and Europe to speak to people about how they should be against it, not supporting it, and made it to where a lot of people looked down at the thought of Slavery, even back then. The book made it where people didn't think there wasn't a problem with it, and thought something needed to be done to free the slaves in the areas and fight against it.