Which of the following workplace hazards can glare and shadow controls help alleviate?

Glare and shadow controls specifically address issues related to lighting in the workplace. Glare can cause visual discomfort and reduce visibility, making it difficult for employees to see their tasks clearly. Shadows can create areas of poor visibility, which can obscure potential hazards or make it challenging for workers to perform their duties effectively.

By implementing glare reduction strategies such as using diffused lighting, installing blinds, or positioning workstations to minimize direct light sources, organizations can enhance visual comfort and safety. Similarly, addressing shadow issues may involve strategic placement of lighting fixtures to ensure even illumination in work areas.

Other options do not directly relate to glare and shadow controls. Machinery and electricity typically pertain to physical safety hazards rather than visual issues, while housekeeping focuses on cleanliness and organization rather than lighting conditions. Thus, lighting is the primary concern that glare and shadow controls aim to mitigate, making it the correct choice.