Examlex
Which of the following does not share the same empirical formula as the other three?
Lazy
A lack of willingness to work or use energy, often characterized by inactivity and a tendency to avoid effort.
Closed System
A theoretical concept in various sciences referring to a system that does not interact with others systems or its environment, exchanging neither matter nor energy.
Open System
A social system in which status is based on achieved attributes.
Social Stratification
The hierarchical arrangement of individuals or groups in society based on wealth, power, race, education, etc., which affects their access to resources and opportunities.
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