Which of the following is an example of environmental foreign object debris (FOD)?

The correct answer, which identifies an example of environmental foreign object debris (FOD), is snow. In the context of aviation and operations involving aircraft, environmental FOD refers to naturally occurring debris that can interfere with operations or cause hazards. Snow fits this definition as it can accumulate on runways, taxiways, and aircraft, potentially leading to safety risks such as reduced traction and impaired visibility.

Leaves and bird droppings can also be considered forms of environmental debris; however, snow is more commonly recognized in aviation contexts as a significant hazard that needs to be addressed during winter operations. While tools left on the ground represent a type of FOD, they do not fall under the category of environmental debris because they are man-made objects rather than naturally occurring items. Understanding the classification of FOD is crucial for ensuring a safe operational environment, especially in settings where environmental factors can significantly impact safety and efficiency.