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Three techniques used to concentrate ores are flotation, ferromagnetic separation, and amalgamation.
Tuberculosis
A contagious bacterial infection that primarily affects the lungs but can also impact other parts of the body.
Airborne Transmission
The spread of diseases or pathogens through air particles that can be inhaled by individuals near an infected person.
Droplet Transmission
The spread of infectious agents through respiratory droplets expelled when an infected person coughs, sneezes, or talks.
Indirect Contact
A mode of transmission of disease through an intermediate object or person, not involving direct physical contact with the infected individual.
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