Electrical currents are created when two different metals come in contact, creating what is known as ____________

The best way to reduce patient radiation exposure is to

A) expose routine radiographs. B) determine the risk/benefit ratio prior to exposure. C) develop office policy for the maximum number of exposures permissible per patient. D) use evidence-based selection criteria for prescribing radiographs.

According to the domestic violence statistics, ____ of men who assaulted their female partners also assaulted their children.

A. 25% B. 50% C. 75% D. 90%