1) The document assesses various hazards on a film set, the risks they pose, who is affected, and control measures. Lighting poses the highest risk, as it could fall and injure someone or damage eyes if too bright, and wires could cause tripping. Control measures include not overbrightening lights, clearing wires, and care near wires. 2) A green screen poses medium risk as actors could trip, controlled by care and avoiding fast movement. 3) Glow sticks pose lowest risk as they could burst and are toxic, controlled by avoiding sharp objects.