Examlex
Find the standard deviation of this sample: 4, 7, 9, 12, 15.
Anaerobic Bacteria
Microorganisms that thrive in environments lacking oxygen and can break down substances in the absence of air, often used in waste treatment processes.
Phosphorus
A chemical element essential for life, involved in numerous cellular processes and a critical component of DNA and bone mineral.
Pollution Prevention
The practice of reducing or eliminating waste and pollutants at their sources, prior to recycling, treatment, or disposal.
Freshwater Lake
A large body of standing water that contains low concentrations of dissolved salts, distinct from sea water, providing habitat for a diverse range of organisms.
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