___________is environmentally friendly and made exclusively of gases that humans breathe

Which of the following is an important reason for controlling spectators at the scene of an extrication incident?

A) It ensures respect for the patient's privacy. B) Spectators may interfere with rescue efforts. C) Spectators may get injured. D) All of the above

Wet chemical extinguishing systems require periodic inspection, testing, and maintenance according to the _________________

a. UL 300 standard b. NFPA 2001 c. FM Global standard d. NFPA 17A