The lower the pH, the greater the alkalinity

In order to control egress passageways, firefighters should close doors to rooms adjacent to the passageway:

A. after it is searched. B. before it is searched. C. to mark it as having occupants. D. to mark it as needing searched.

Two parameters that usually result in an indication of excellent health are

A) genetics and education B) genetics and income C) education and income D) profession and income