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asphalt base – асфальтна основа
           paraffin base – парафінова основа
           weight – вага

                                Self-control questions

                1. What are the main products of crude oil?
                2. Where is oil used?
                3. What are the main elements of oil?
                4. How is crude oil formed?
                5.  Why  oil  from  one  area  is  different  from  that  found  in
           another?
                6. In what soft rocks does the oil accumulate?
                7. What caused the transformation of earth’s uneasy surface?
                8. Where did the partly totted animal trap?
                9. In what way was the coal formed?
                10. Where can we use the carbon?

                                      Exercises

                Exercise 1. Say whether the statement is correct
                1.  Carbon,  the  main  element  of  crude  oil  runs  our  cars,
           trucks, buses and boats.
                2. Other petroleum products called petrochemicals are used
           to make paints, cleaner, waxes.
                3. Crude oil is a black, heavy liquid made up almost entirely
           of two elements: hydrogen and carbon.
                4. Carbon is a liquid which we know best in as charcoal or
           the graphite in lead pencils.
                5. Petroleum or crude oil is a liquid which is formed when
           hydrogen  and  carbon  are  combined  in  the  right  proportion,
           together with atoms of other elements.
                6. Oil from one area is often quite different from that found
           in another.

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