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The Amphiumidae salamanders
Temperature
A measure of the average kinetic energy of the particles in a system, expressed in units such as Celsius (°C), Fahrenheit (°F), or Kelvin (K).
Scarcity
The basic economic issue arises from unlimited human desires facing limited resources on Earth.
Economic Wants
Describes the desires for goods and services that can improve quality of life but require resources to obtain.
Available Resources
The total amount of physical, human, and capital resources that are accessible for use in production or consumption.
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