Which of the following method is used for the separation of different components of petroleum?

Q. Write answer to the following question in your own words.

(a) How are the components of mixtures separated by simple methods ?
(b) Which elements ( metals and non-metals), compounds and mixtures do we use in our day-to-day life?
(c) In everyday life, where and for what purpose do we use centrifugation?
(d) Where are the methods of separation by distillation and by separating funnel used ? Why ?
(e) Which precaution will you take while using the methods of distillation and separation by separating funnel ?