explain the unification of germany explain the unification of italy explain the use of explain the utility of road transport explain the universal law of gravitation explain the use of navigator explain the universal declaration of human rights explain the unification of britain explain the unification of germany class 10 explain the urine formation explain the uses of internet explain the use of the 51 and 59 modifiers explain the use of java streams api explain the universe explain the use of the accumulator register explain the uses of throw and throws explain the underground railroad explain the use of variables explain the unique animal life of oceania explain the use of bookmarks explain the use of window functions in sql explain the useeffect hook in react explain the use of force continuum explain the unification of britain class 10 explain the use of the audio element in html5 explain the unification of italy class 10 explain the use of try catch and finally explain the difference between tcp and udp explain how the polyp uses its tentacles explain the benefits of using the internet explain the process of unification of italy explain the reasons for use of ppe