Question

renewable resources are considered as such because they can be replaced at a rate ______. less efficiently than they are used faster than they are used slower than they are used

Explanation:

Renewable resources are defined as resources that can be replenished. For a resource to be renewable, its replacement rate (how quickly it is regenerated or replenished) must be faster than the rate at which it is consumed (used). If it were replaced slower or less efficiently than used, it would be a non - renewable or depleting resource. So the correct option is the one where the replacement rate is faster than the usage rate.

Answer:

B. faster than they are used