The energy source that eventually runs out of stock is known as

ARenewable resource

BNon-renewable resource ✓ Correct

CPrimary resource

DSecondary resource

Correct answer: (B) Non-renewable resource

Explanation

A non-renewable resource is one whose stock eventually runs out with use.

A renewable resource replenishes naturally and does not exhaust.

A primary resource describes an unprocessed source, not exhaustibility.

A secondary resource refers to a processed or recycled form.

Coal, oil and natural gas are the main non-renewable energy stocks.

They formed over millions of years and cannot be replaced on a human timescale.

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