The Four Categories Under Which the EPA Categorizes Waste Are

question 7

Short Answer

The four categories under which the EPA categorizes waste are ignitability, corrosivity, reactivity, and _____.

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Definitions:

Temporalis

A broad, fan-shaped muscle on each side of the head that aids in chewing by elevating the mandible (lower jaw).

Sternocleidomastoid

A muscle in the side of the neck that acts to flex and rotate the head.

Orbicularis Oculi

A muscle around the eye socket that enables the eye to close and squint.

Masseter

A major muscle of mastication involved in jaw closure, located at the side of the jaw.