Respuesta :
This is a fact, it is stating something that actually happens to the polar bears while they are confined.
An opinion would be: “Polar bears pace back and forth because they miss their home, and other polar bears.” That is not a fact, that is what someone thinks about the polar bears pacing back and forth.
An opinion would be: “Polar bears pace back and forth because they miss their home, and other polar bears.” That is not a fact, that is what someone thinks about the polar bears pacing back and forth.