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Which best explains why aluminum is a nonrenewable resource?

It cannot be quickly replaced.
It is expensive to process.
It conducts electricity.
It is useful to humans

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Answered by GPT-5 mini AI
It cannot be quickly replaced.

Nonrenewable resources are those that form over geologic time and are not replenished on a human timescale; aluminum metal is produced from bauxite ore, which takes millions of years to form (even though aluminum can be recycled).