In his travels Author William Least Heat-Moon stumbled upon the little store in a county names Nameless in Tenessee, eh tehn wrote about this journey he took with his family and when he describes this place he starts off by describing their store, and then Ginny and Thurmond Watts telling him the story of how the name of the county came to be.
There are basically two steps that go in a cycle. Old words from the English language are taken, and they are changed in how they sound and what they mean, making a slang, sometimes slowly sometimes quickly the slang terms become excepted as words by society and eventually they become the words being changed. If you think about it the language changes based on what we find to be the way the popular people talk. In the past it was the rich or the actors/esses in plays that started a change in culture, now it are the musicians and actors/esses. That is what I think about it, there are probably more ways of explaining it, if I even answered that the way you wanted.
The last one is grammatically correct
In order to answer the question, I will need to research cloning. More specifically what does it really mean to clone something, is it as simple as taking a blood sample? I would want to research the scientific benefits of having a clone. Also, are there any legal issues. If my clone commits a crime am I liable for it? The sources that would contain much of my information would be Scientific journals. I would be able to research the question and address the answer within a reasonable timeframe.