What is the type of method that uses a storage supply of dry chemical and an expellant gas with one or more hose lines to discharge the agent onto the hazard?

Whereas mild acne is merely annoying, severe acne can lead to emotional and physical __________

a. scars b. pain c. benefits d. none of the above

The optic nerve is a _______ nerve, and controls _______.

A) sensory, light perception and vision B) sensory, hearing and balance perception C) motor, eye movements and pupil dilation D) motor, pupil constriction and eye movement