Schoolchildren Can Be Drug Tested

question 19

Multiple Choice

Schoolchildren can be drug tested

• A) any time.
• B) if they are under sixteen.
• C) if they are in an extracurricular activity.
• D) if they get low grades.

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Definitions:

Disinfectant

A chemical agent used to destroy or inhibit the growth of harmful organisms on surfaces or objects.

Field Diameter

The width of the viewable area when looking through a microscope.

Increasing Magnification

The process of enlarging the appearance of an object through an optical device, such as a microscope or telescope.

Oil-immersion Lens

A microscope lens that uses oil immersion to increase resolution by minimizing refraction.