Downcycling is described as recycling that reduces material quality over time.

• A. Recycled Into the Same Product
• B. Recycled Into a Different Product
• C. Recycling That Reduces Material Quality Over Time
• D. Composting

Answer: (C)

Downcycling describes recycling in which the material’s properties degrade with each recycling step, so it can no longer be used for the same purpose. That makes the phrase “Recycling That Reduces Material Quality Over Time” the most precise description, because it directly captures the essence that repeated recycling leads to lower-quality products or lower-grade applications. For example, paper fibers get shorter and weaker after multiple recyclings, and some plastics suffer polymer damage or contamination, ending up in products of lesser quality.

Recycling into the same product would imply a closed-loop path where quality is preserved, which is not downcycling. Recycling into a different product can involve quality loss, but the defining feature is the reduction in material quality over time, which the statement explicitly states. Composting, on the other hand, is the biological breakdown of organic matter, not a recycling of materials into new products.