Answer: When they sign a yellow- dog contract they are agreeing to the company which forces each individual worker to sign, on the penalty of not getting the job (or if he already has the job, of losing it), binding the worker to surrender his right to organize. In other words, yellow dog binds the worker not to join a union.
Because of the simple fact that they were the closest places to Europe.
D what grade are u in ....
These laws were known as the "Black Codes".