Which of the following is an indicator of worker safety?

Access to medical care is a key indicator of worker safety because it directly relates to the health and well-being of individuals in the workplace. When workers have access to medical services, they can receive preventive care, treatment for injuries and illnesses, and necessary health support. This reduces the risks associated with safety incidents, as effective medical care enables timely responses to workplace injuries, thereby fostering a safer working environment.

The other choices, while important in their own contexts, do not directly signify worker safety. Climate change, for instance, impacts broader environmental conditions but does not specifically gauge safety within a workplace. Access to education is crucial for overall development and empowerment but does not inherently relate to the immediate safety concerns in a work setting. Conservation areas are vital for environmental protection and sustainability, but they do not provide direct insight into the health and safety provisions available to workers.