1. Electrical Issues: Faulty wiring, overloaded circuits, and improper use of electrical equipment can cause fires. 2. Flammable Materials: Improper storage of flammable materials such as chemicals, paper, and textiles. 3. Cooking Equipment: In businesses like restaurants, unattended cooking equipment is a common fire risk. 4. Heating Equipment: Portable heaters and malfunctioning HVAC systems can also pose fire risks.