Work as a Physics Term is Energy of Force over Distance or the amount of Energy required to move an object at a given speed or Force over a given Distance. Basic example would be moving boxes or stocking shelves. Advanced example of my sona is accomplishing everything a Factory or Assembly Line can do in a Day, instead in Under an Hour. The net of Energy required remains roughly the same, but because it is all being done at once the total Force (as in performing the same task many times at the same time) is increased tremendously, thus increasing the Work done. As the Work increases enough, the efficiency drops off, because I am still one being, and thus also creates risk of errors. These errors deal with my sona's matter manipulation abilities, and so means that the molecules and bonds formed may be incomplete, abnormal, or even chaotic (not necessarily radioactive). Back on the visible scale, this means the object may malfunction if its technology based, could catch fire, electrocute you, explode, melt, etc. For edibles could be any sort of food related illness from common to rare (Depending on the Food/Drink). In all cases its equal to not paying attention to what you are doing, and do something that you suddenly can't take back. (For you, like burning down several acres of Forest! D:, but my abilities can help promote regrowth, as they are livings things my abilities cannot influence them directly, so by general environmental remediation to accomplish it indirectly) (This would be like being a single Gardener for an entire Royal Palace in terms of Work, having to do it all alone)