Which of the following is inexhaustible natural resources?'

Appeared in: NIA - 29 January 2023

Explanation

Inexhaustible natural resources are those that are available in practically unlimited quantities and are not depleted by human consumption over a human timescale.
Air is considered an inexhaustible resource because it is constantly present in the atmosphere, and its overall quantity is not significantly reduced by human activities.
Other examples of inexhaustible resources include sunlight, wind, and tidal energy, which are perpetually available.

Option B: Minerals are non-renewable resources. They are formed over geological timescales (millions of years), and their supply is finite and can be completely used up.
Option C: Forests are considered renewable resources, but they are also exhaustible. They can be depleted if they are harvested or cleared (deforestation) at a rate faster than they can regrow.
Option D: Coal is a non-renewable fossil fuel. It is exhaustible because it was formed from ancient organic matter over millions of years, and its reserves are limited and will eventually run out.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Classification of Natural Resources as background academic context rather than a clinical decision trigger.
Understanding resource classification is fundamental to environmental science and creating policies for sustainable development.
The distinction between renewable and inexhaustible is crucial; while forests are renewable, their mismanagement can lead to exhaustion, which impacts ecosystems, climate, and human health.
Awareness of resource limits informs public health policies related to pollution control, as the burning of non-renewable fuels like coal directly impacts air quality and respiratory health.

How to Approach the Question

First, identify and define the key term in the question: 'inexhaustible natural resources'. This means a resource that does not run out from human use.
Next, evaluate each option against this definition.
Consider 'Air'. Is the global supply of air limited in a way that it could be used up? No. It fits the definition.
Consider 'Minerals', 'Forests', and 'Coal'. Think about whether their supply is limited. Minerals and coal are finite. Forests can be cut down faster than they grow. These are all exhaustible.
Based on this analysis, select the option that best matches the definition of 'inexhaustible'.

Concept Tested & Keywords

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E6 Comprehensive Textbook of Community Health NursingShyamala D part 1 (pp 26-389 of 389) pp. 111-113, 110-112

Practise the full NIA - 29 January 2023

Attempt every question from this paper in a timed mock, then review the full solution for each one.