A fact is a statement that can be proven true or false based on objective evidence or data. It is a statement that can be verified and is generally agreed upon by most people. For example, "The Earth is round" is a fact that can be proven true.
An opinion, on the other hand, is a statement that expresses a personal belief, feeling, or judgment. It is a statement that cannot be proven true or false because it is based on personal thoughts or feelings. For example, "Chocolate ice cream is the best flavor" is an opinion because it is based on personal preference and cannot be proven true or false.
One way to distinguish a fact from an opinion is to look for evidence or data that supports the statement. If there is objective evidence or data that supports the statement, it is likely a fact. If there is no objective evidence or data to support the statement, it is likely an opinion.