Final answer:
The potential safety hazards in a laboratory include inadequate ventilation systems, missing emergency exits, and overcrowded workspaces. Knowing the location of safety equipment and following protocols is essential for safety. Option A,C,D are correct.
Step-by-step explanation:
Each option given represents different potential safety hazards within a laboratory setting:
Inadequate ventilation system can lead to insufficient dispersal of hazardous fumes which could harm individuals via inhalation.
Improperly placed lab belt (assuming this is a typographical error and 'belt' refers to 'equipment') creates tripping hazards or can result in misuse of equipment.
Missing emergency exits pose a significant risk in case of an emergency, as they compromise the evacuation process.
Overcrowded workspace makes it difficult to move safely and avoid accidents, which could lead to spills of dangerous substances or interfere with the use of safety equipment.
Knowing the location of safety equipment, such as fire extinguishers and eyewash stations, is critical for laboratory safety. Furthermore, specific protocols must be followed when working with hazardous materials to prevent accidents and ensure safe disposal of lab materials like bacterial cultures.
For example, proper disposal of a bacterial culture grown on an agar plate is not just throwing it away in any garbage container, but following biosafety guidelines.