Dusts as a pesticide formulation typically contain which of the following?

When considering dusts as a pesticide formulation, the key characteristic is that they typically contain low amounts of active ingredients combined with inert materials. This formulation type allows for easy application and dispersal over target areas. The inert materials help to carry the active ingredient, facilitate adherence to surfaces, and provide even coverage.

Dust formulations are designed to deliver pesticide effectively while minimizing the risks of injury to non-target organisms and reducing environmental impacts. The low concentration of active ingredients makes them suitable for many applications, particularly where broader coverage and long-lasting residual effects are desired.

The other options don't accurately describe the nature of dust formulations. Concentrated emulsions and liquid solutions indicate a higher concentration of active ingredients, which is not characteristic of dusts. Thus, the choice accurately reflects the composition and purpose of dust pesticide formulations.