Which of the following are common sources of stress?
a. how we react to circumstances
b. a difficult work environment
c. unhappy or dysfunctional relationships
d. All of the above
d
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What should a firefighter do before stepping off a ladder, parapet wall, or other place of safety onto the roof of a burning building, especially if the roof surface is obscured by smoke or darkness?
A. Ensure the safety of all personnel who are assisting. B. Direct a fire stream into an existing vertical exhaust opening. C. Sound the roof for structural integrity by striking with an axe. D. Direct a fire steam into an existing horizontal exhaust opening.
The area of the thorax that includes the heart, the aorta and pulmonary artery, superior and inferior vena cava, trachea, major bronchi, and the esophagus is the:
a. mediastinum b. visceral pleura c. parietal pleura d. rib cage