A fact is a statement that can be proven or disproved with evidence. An opinion is a statement that expresses a person's feelings or beliefs about something. Opinions cannot be proven or disproved with evidence, because they are not based on facts.
It is important to remember that facts and opinions are different, because they can be used to manipulate people. For example, someone might use a fact to support an opinion, even if the fact does not actually support the opinion. This can be misleading, because it can make people believe that the opinion is true, when it is not.
It is also important to remember that facts and opinions can change over time. For example, something that was once considered a fact may later be proven to be false. Similarly, an opinion that was once held by many people may later be changed.
Therefore, it is important to be critical of information that you are presented with. You should always ask yourself whether the information is based on facts or opinions. If it is based on opinions, you should be aware of the person's bias.