A: Fiction. Antibiotics used in animals are the cause of major human drug resistant diseases. Myth: âAnimal antibiotics kill more people than breast and prostate cancerâ screamed a blogger in the wake of an AP story on antibiotics used to keep food animals healthy.
Mineral Luster. Luster is a description of the way a mineral surface looks when light reflects off of the surface. Luster has two categories, metallic and nonmetallic.
The definition of luster is a brightness, shine or special quality, or great fame or honor. 1  When brass is very shiny, this is an example of a time when brass has a special luster. 2  When a famous person comes to a celebration, this is an example of a time when he adds luster to the celebration.