A unitary system of government, or unitary state, is a sovereign state governed as a single entity. The central government is supreme, and the administrative divisions exercise only powers that the central government has delegated to them.
So, preventing an infestation of ants or getting rid of ants is a matter of closing entry points, repelling them, and practicing daily routines of cleanliness. 1  Follow them. 2  Close gaps and/or apply natural repellents those entry ways.  Practice cleanliness and routine maintenance.
1 The powdered sugar is used to bait the ants, as many species of ants are attracted to sweet food sources.  The baking soda is what kills the ants. Ants have an acidic substance inside their bodies, and this substance reacts with the baking soda once the ants ingest it.