The level at which a resource is renewable—the rate at which it can be replenished.

• A. Recyclability
• B. Renewability
• C. Reusability
• D. Regenerability

Answer: (B)

Renewability is about how fast a resource can replenish itself. If the rate at which the resource is replenished keeps up with or exceeds the rate of consumption, the resource can be considered renewable. For example, sunlight and wind replenish continuously and quickly, making them highly renewable. Timber can be renewable if forests are managed so that growth matches or exceeds harvesting. In contrast, recyclability describes how materials can be recovered after use to make new products, which is about processing and reuse rather than how fast the natural resource replenishes. Reusability focuses on using the same item again, which saves resources but doesn’t address natural replenishment rate. Regenerability isn’t a standard term for describing replenishment rate in this context.