Examlex
Smartphones evolved from basic cell phones and PDAs.
Output Per Million BTUs
A measure of energy efficiency, indicating the amount of output produced for every million British Thermal Units consumed.
World Population
The total number of living humans on Earth at a given time.
Per Capita Energy
The average amount of energy consumed per person within a specific population or area.
Degree Celsius
A unit of measurement for temperature where 0 degrees represents the freezing point of water, and 100 degrees represents the boiling point at sea level.
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