Which formulation cannot be made into a liquid formulation?

• A. Flowable
• B. Baits
• C. Granules
• D. Extruded Block

Answer: (D)

The idea being tested is how different pest control formulations relate to liquids used for application. A liquid formulation is something that can be poured or sprayed as a liquid, or easily dispersed in water. Flowable is already a liquid-style formulation, and solid forms like granules or baits can often be broken down or dispersed to create a slurry or suspension in water. An extruded block, however, is a dense solid formed under pressure with a binder matrix designed for slow release. Its active ingredient is physically trapped in that solid structure, not meant to dissolve or disperse uniformly in a liquid. Turning an extruded block into a liquid would require breaking the matrix and dissolving or otherwise releasing the binder, which would defeat the slow-release design and typically produce an unstable or non-uniform liquid. For that reason, an extruded block cannot be practically made into a liquid formulation.