Q.Y is the american accent so different to the british accent
A.Accents evolve through local interaction and blend into one another at boundaries. The American accent is a descendant of the English West Country.
Q.What gives the australian people there accent, when origionly they from england?
A.The Australian accent is a derivative of the Cockney/Kentish accents. The stretched vowel sounds are socio-linguistic perversions of Estuary English.
Q.Why do scouser's talk in that accent?
A.A person's accent comes from the people they listen to while growing up. Accents evolved because, historically, populations were localised and insular.