Which of the following is classified as a non-renewable natural resource?

Oil is classified as a non-renewable natural resource because it is formed from the remains of ancient marine organisms that have undergone a lengthy geological process over millions of years. This process produces petroleum deposits that can be extracted for use as fuel and other products. Once consumed, oil cannot be replenished within a human timescale, making it finite and limited.

The other options represent renewable resources. Wind and solar energy are harnessed naturally and can be replenished continuously while utilizing modern technology without depleting their source. Hydropower, generated from flowing water, is also considered renewable as the water cycle continually replenishes rivers and streams used for energy generation. In contrast, the extraction and use of oil contribute to depletion and environmental challenges, reinforcing its classification as a non-renewable resource.