Question

who would most likely be required to work with sodium hydroxide?
a plumber
a gardener
a bricklayer
a mechanic

Explanation:

Sodium hydroxide is a strong base used in drain - cleaning products. Plumbers often deal with clogged drains and may use such products. Gardeners mainly work with plants and soil, bricklayers with bricks and mortar, and mechanics with vehicles and machinery.

Answer:

A. a plumber