21. This implies a reduction in soil volume by reducing the voids in between soil particles . 22. Atmospheric curium compounds are poorly soluble in common solvents and mostly adhere to soil particles . 23. The resulting soil structure increases in stability with the number of interactions between soil particles . 24. At the lowest scale, the soil chemistry affects the aggregation or dispersal of soil particles . 25. Mechanic pressure applied to the soil is counterbalanced by an increase of soil particle interactions. 26. For ground and low-altitude bursts, the cloud contains also vaporized, melted and fused soil particles . 27. Another major determinant is the soil particle size. 28. The sorption coefficient is a means of specifying a pesticide's tendency to bind to soil particles . 29. Soil particle " hold on " to positively charged nutrient particles because they are negatively charged.30. Also, when soil particles are blowing they wear away at the plants that they run into.