The circular supply model primarily aims to reduce reliance on which materials by substituting with recycled plastics?

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Multiple Choice

The circular supply model primarily aims to reduce reliance on which materials by substituting with recycled plastics?

Explanation:
The circular supply model stresses reducing reliance on virgin raw materials by substituting them with recycled inputs. In construction, recycled plastics are used to replace some natural aggregates that come from limestone and clay, helping to cut the quarrying and processing needed for these materials. This makes the system more resource-efficient and lowers environmental impact. Replacing cement, reinforcement steel, or water with plastics is not common practice or would undermine performance in typical concrete applications, so the substitution best aligns with limestone and clay aggregates.

The circular supply model stresses reducing reliance on virgin raw materials by substituting them with recycled inputs. In construction, recycled plastics are used to replace some natural aggregates that come from limestone and clay, helping to cut the quarrying and processing needed for these materials. This makes the system more resource-efficient and lowers environmental impact. Replacing cement, reinforcement steel, or water with plastics is not common practice or would undermine performance in typical concrete applications, so the substitution best aligns with limestone and clay aggregates.

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