Final answer:
To protect your eyes in the lab from harmful substances and sharp objects, you should wear safety goggles, use a face shield, and wear safety glasses, which means the answer is 'All of the above'. It's crucial to be aware of proper lab safety practices, including wearing the correct protective clothing and knowing the location of safety equipment.
Step-by-step explanation:
To protect your eyes from chemicals and glass shards in the lab, you should wear safety goggles, use a face shield, and wear safety glasses. Therefore, the correct answer is 4) All of the above. Safety goggles provide a barrier against chemicals and small particles. A face shield offers additional protection for your entire face, which can be beneficial for procedures that pose a risk of splashing or projectiles. Safety glasses can protect against less hazardous conditions but may not offer as much comprehensive coverage as goggles. It's important to note that you are responsible for your safety and the safety of others in the laboratory, and using proper eye protection is a critical component of lab safety.
In terms of general lab safety guidelines, it's also imperative to know where specific safety equipment is located, such as the fire extinguisher and the eyewash station. Never eat or drink in the laboratory to avoid contamination and always use appropriate techniques to clean up broken glass, such as utilizing a dustpan and broom rather than touching it with bare hands. Wearing proper clothing and disposing of waste according to protocol are equally important for maintaining a safe laboratory environment.