Answer the following question: Yes / no, is the following a verifiable fact?
"Public Health Services focus on Preventive healthcare."
My answer and thoughts: The answer is yes.
Chain of thoughts: Preventive healthcare helps prevent or catch a disease process in it's early stages.

Answer the following question: "Chuck Norris appeared in the film Karate Kid."
Is the above claim true?
Options:
- yes
- no
My answer and thoughts: The answer is no.
Chain of thoughts: He did not appear in the film and is not in the film credits.

Answer the following question: Yes / no, is the following a verifiable fact?
"Moss growth is greatly impacted by the pH of the rock it grows on."
My answer and thoughts:
The answer is no.
Chain of thoughts: Rock pH does not change so long as the rock stays in a solid state.