What's the Difference Between England, Britain and the U.K.?

In this video, Alisha answers 5 questions. - How can I practice listening to English better? - What is the difference between ''England'' , ''British'' and ''United Kingdom""? - What's the difference between ""bush"" and ""forest""? - Could you explain the difference between ""other"" and ""another""? - I am wondering what I should say when people ask me what my job is and I am a just housewife and raising kids. Is it okay to say ""I have no job, I am just a housewife""?