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Difficulty: Very hardRenewable and Non-Renewable Natural Resources

Environmental resource planners evaluate natural assets based on their rate of replenishment relative to human extraction rates. In the context of resource exploitation across West Africa, which of the following groupings consists EXCLUSIVELY of non-renewable resources whose stocks are finite and cannot be regenerated within human timeframes?

  1. Petroleum, uranium ore, and subterranean lignite depositsAnswer
  2. B
    Biomass energy, natural gas condensate, and geothermal heat reserves
  3. C
    Solar radiation, commercial iron ore deposits, and tidal energy
  4. D
    Hydroelectric flow, bituminous coal, and wind power energy

Answer

The grouping containing petroleum, uranium ore, and subterranean lignite deposits consists exclusively of non-renewable resources.
Petroleum, uranium ore, and lignite are all finite earth materials created over vast geological epochs. Because their natural rate of formation is virtually zero on human time scales, extraction leads to net stock depletion.

Step-by-Step Solution

1
Define the criteria for non-renewable natural resources
Non-renewable resources exist in fixed geological quantities and possess extraction rates far exceeding their million-year formation rates.
Clear distinction requires evaluating natural regeneration rates against human usage timeframes.
2
Evaluate each item in the first grouping
Petroleum is a subterranean fossil fuel, uranium ore is a finite nuclear mineral deposit, and lignite is a low-grade fossil coal. All three are exhaustible geological assets.
None of these three components are replenished through active ecological or meteorological cycles.
3
Analyze alternative resource groupings for renewable components
Biomass, geothermal heat, solar radiation, tidal energy, hydroelectric flow, and wind energy are driven by continuous solar, internal heat, or hydrological flows.
The presence of any perpetual energy flux invalidates a grouping claiming to be exclusively non-renewable.

Key Concept

Classification of Renewable and Non-Renewable Natural Resources
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Topics

Renewable and Non-Renewable Natural Resources

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