Examlex
Comparatively, which of the following energy resources has the overall lowest operating costs, lowest environmental impact, and highest efficiency?
Homeostasis
The process by which living organisms regulate their internal environment to maintain a stable, optimal condition despite external changes.
Need
A requirement for something because it is essential or very important.
Drive-reduction Theory
A psychological motivation theory suggesting that the act of fulfilling basic physiological needs reduces drive and generates a state of psychological equilibrium or satisfaction.
Famine
A severe shortage of food resulting in widespread hunger, malnutrition, and increased mortality.
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