What is a closed-loop recycling system?

A closed-loop recycling system refers to a sustainable process where materials are recycled and then reused to produce the same product again, effectively closing the loop in the lifecycle of a product. This approach minimizes waste, conserves resources, and reduces the need for new raw materials, thereby enhancing environmental sustainability.

In this context, the correct answer provides a clear definition of how the closed-loop system operates—transforming used materials back into the same form, allowing for continuous reuse. This process not only helps in reducing environmental impact but also underscores the importance of maintaining the value of materials for as long as possible.

The other choices do not accurately convey this concept. A temporary storage space does not imply any processing or reuse of materials, just a holding area. A network of companies buying recycled goods does not focus on the actual recycling process, and the method for separating recyclables simply outlines a step in recycling rather than describing an entire system that reuses materials in their original form.