Which of the following is a common hazard in excavation sites?

Slips, trips, and falls are indeed considered a common hazard in excavation sites due to various factors associated with the working environment. Excavation areas often involve uneven surfaces, loose soil, and the presence of tools and equipment that can easily lead to these incidents. In addition, weather conditions such as rain can create muddy and slippery surfaces, increasing the risk of falls. Proper housekeeping, maintaining stable walking surfaces, and employing safety protocols can help mitigate these hazards significantly.

Other potential hazards, such as excessive lighting, static electricity, or overhead tree branches, are typically less frequent occurrences or may not represent primary dangers in the context of excavation work. Therefore, focusing on the prevention of slips, trips, and falls is a crucial aspect of ensuring safety on excavation sites.