Identify three hazards that cause an apparatus to be placed away from the building?

The correct choice highlights three critical hazards—fire intensity, building instability, and falling debris—that warrant positioning an aerial apparatus away from a building during firefighting operations.

Fire intensity refers to the heat and flames emanating from a structure, which can create extreme conditions that compromise the safety of firefighting personnel and equipment. If the fire is too intense, positioning the apparatus too close could lead to overheating, equipment damage, or jeopardize the safety of firefighters.

Building instability concerns the structural integrity of a burning building. As a fire progresses, it can weaken load-bearing elements, making it risky for personnel and equipment to be stationed nearby. If a structure shows signs of collapse, it's prudent to ensure that aerial devices are maintained at a safe distance to prevent injury or loss of equipment.

Falling debris is another significant hazard that can occur during firefighting operations. As fires weaken the building materials, roofs, walls, and other structures may give way, posing a severe risk to anything positioned too close. Maintaining a safe distance protects against injuries from collapsing materials that could fall from the building during the fire.

The other options, while they describe potential hazards, do not directly relate to the immediate dangers that necessitate a distance from the building during firefighting efforts.