Final answer:
The correct option is: 1) hazard. A surface encumbrance is anything that could create a hazard in or around a trench. It refers to any object or substance that poses a potential danger to workers. Examples include rocks, tree roots, utilities, and unstable soil.
Step-by-step explanation:
A surface encumbrance is anything that could create a hazard in or around a trench. It refers to any object or substance that poses a potential danger to workers. Examples of surface encumbrances include rocks, tree roots, utilities, and unstable soil.
The correct option is: 1) hazard. A surface encumbrance is anything that could create a hazard in or around a trench. It refers to any object or substance that poses a potential danger to workers. Examples include rocks, tree roots, utilities, and unstable soil.