What is necessary to maintain the distribution of a suspension formulation?

To maintain the distribution of a suspension formulation, agitation is necessary. Suspension formulations consist of solid particles dispersed in a liquid carrier. Over time, these solid particles can settle at the bottom of the container due to gravity, leading to an uneven distribution and reducing the effectiveness of the product when applied.

Agitation ensures that the solid particles are kept in suspension, allowing for a uniform mixture that can be applied consistently. This process helps to evenly distribute the active ingredients throughout the liquid, thereby enhancing the performance of the herbicide when it is used. Regular agitation is essential, especially before application, to ensure that the formulation retains its effectiveness and homogeneity.

Other options, such as heating or cooling, do not address the need to keep solid particles suspended in the liquid phase, while gentle stirring is less effective for maintaining a stable suspension compared to vigorous agitation. Hence, agitation is the most suitable method for ensuring that a suspension formulation remains evenly distributed.