A(n) ____________________ is a source of information to which a reader is referred

A collapse zone must be established when:

A. a defensive strategy has been adopted. B. there is no evidence of structural instability. C. mortar between masonry shows no sign of deterioration. D. furnishings and finishes do not overwhelm fire suppression systems.

When working with a visible light-cure unit,

the dental unit light must be turned to the off position. a face shield must be worn. protective eyewear is not necessary. protective visible-light eyewear is required.