Let's start with an example from history. Listed below are a series of claims regarding United States President John F. Kennedy (1917-1963). Classify each statement according to whether or not it is falsifiable.
A. Kennedy was the 35th president of the United States.
B. Kennedy died from a bullet in his brain.
C. Kennedy's death was the will of God
D. The murder of John F. Kennedy was an act of evil.
E. If he'd lived, Kennedy would have ended the Vietnam War.
F. Kennedy's murder was orchestrated by an un-detectable shadow government of the United States.

Statements A and B are Falsifiable

Statements C, D and E are not Falsifiable

Explanation:

a. Falsifiable doesn't mean a statement is wrong or false. It is the potential ability of a statement to be proven wrong.

Statement A and Statement B are falsifiable statement. This is because any new evidence could come up to dispute this statements.

Statement A is said to be falsifiable because he can be checked against records that he is actually the 35th President of the United States.

Statement B which says ". Kennedy died from a bullet in his brain." This could be disputed if a medical examiner decides to come up with new evidence to say otherwise.

b. Not falsifiable statements are statements that you have to got through a long length to prove that the statements are false. Researches and various long studies have to be carried out to prove the statements are false

Statement C, D, E are not falsifiable statements.

For Statement C " Kennedy's death was the will of God", this statement has to do with religion and has nothing to do science, there is no way to prove this statement wrong.

For Statement E "If he'd lived, Kennedy would have ended the Vietnam War." This statement cannot be disproven.

c, they united with once

b. sec, foreign relations