How many categories of Noxious Liquid Substances exist?

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Multiple Choice

How many categories of Noxious Liquid Substances exist?

Explanation:
Noxious Liquid Substances are grouped into three categories to reflect the level of environmental hazard and to guide required handling and discharge controls. The three categories, named X, Y, and Z, represent increasing levels of hazard, so the correct count is three.

Noxious Liquid Substances are grouped into three categories to reflect the level of environmental hazard and to guide required handling and discharge controls. The three categories, named X, Y, and Z, represent increasing levels of hazard, so the correct count is three.

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