Examlex
Which of the following equations is not a combustion reaction?
Natural Gas
A fossil fuel composed primarily of methane, used as a source of energy for heating, cooking, and electricity generation.
Output Per Million BTUs
The amount of a product or service produced per million British Thermal Units of energy consumed.
Thomas Malthus
An English economist and demographer known for his theory that population growth would outstrip food supply, leading to poverty and famine.
Birthrates
Birthrates measure the number of live births per thousand people in a population over a specific period, reflecting the rate at which a population is growing.
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