Dioxins Are Highly Toxic Compounds That Form Upon the Burning

question 115

Multiple Choice

Dioxins are highly toxic compounds that form upon the burning of certain plastics, especially PVC. Dioxins bioaccumulate, which means that animals higher in the food chain tend to have greater concentrations. Most of our exposure to dioxins comes from the food we eat rather than the air we breathe. How many milligrams of dioxins are there in a liter of milk containing ?

• A)0.16 mg
• B)1.6 × mg = 0.0016 mg
• C)1.6 × mg = 0.00000016 mg
• D)1.6 × mg = 0.000016 mg

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Definitions:

Rinne Test

A hearing test that uses a tuning fork to compare air conduction hearing with bone conduction hearing.

Weber Test

A quick screening test for hearing that involves placing a tuning fork on the center of the forehead to help diagnose unilateral (one-sided) hearing loss.

Sigmoidoscopy

An inspection of the sigmoid with an instrument.

Pulmonary Function Test

A group of tests that measure how well the lungs take in and release air and how well they move gases such as oxygen from the atmosphere into the body's circulation.