Examlex
The total of people infected within a population at a given time is the:
Chromatography
A method used to separate and analyze components of a mixture by passing it through a medium where components move at different rates.
Slightly Different Speed
A variation in velocity, indicating a small but noticeable change in the rate of motion compared to another object or compared to a previous state.
Neutrons
Subatomic particles found in the nucleus of an atom, having no electric charge and a mass about equal to that of protons.
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