Which sentence states a fact?
Chicago's Willis Tower is 1,450 feet tall. The Willis Tower ruins the beauty of Chicago's downtown.
A fact is something that can be proved to be true. Facts can be proved by observing, measuring, or studying information.
The flag of the United States has 13 stripes.
This is a fact. It can be proved by looking at the flag and counting the number of stripes.
An opinion is something that a person believes, thinks, or feels. An opinion cannot be proved true.
The flag of the United States is easy to draw.
This is an opinion. People may have different opinions about what makes a flag "easy" to draw.
The first sentence states a fact.
Chicago's Willis Tower is 1,450 feet tall.
It can be proved by checking an accurate website about the Willis Tower.
The second sentence states an opinion.
The Willis Tower ruins the beauty of Chicago's downtown.
Ruins the beauty shows what a person believes, thinks, or feels. Another person might have a different opinion about whether the Willis Tower makes Chicago less beautiful.