Which of the following natural resources is non-renewable?
Answer Details
Coal is a non-renewable natural resource. This means that once it is extracted from the earth and used, it cannot be replenished or replaced within a human lifespan. Coal takes millions of years to form, and therefore it is not considered a sustainable resource. In contrast, resources such as water and air are renewable, as they can be replenished naturally over time. Forests can be renewable if they are managed sustainably, but if they are over-harvested or destroyed, it can take many years for them to regrow and function as they did before.