Which sentence states a fact?
A: Peru's coast is the least interesting part of the country.
B: A narrow strip of desert runs along Peru's coastline.
The first sentence states a fact.
A narrow strip of desert runs along Peru's coastline.
It can be proved by looking up Peru's geography.
The second sentence states an opinion.
Peru's coast is the least interesting part of the country.
Least interesting shows what a person believes, thinks, or feels. Another person might have a different opinion about what is interesting.