1.   Julian Hill was a/ an

Read the following passage and choose the best answers each of the questions.

      Nylon was invented in the early 1930s by an American chemist, Julian Hill. Other scientists worked with his invention and finally on 27 October 1938, Nylon was introduced to the world. It was cheap and strong and immediately became successful, especially in the making of ladies’ stocking.

      Today, nylon is found in many things: carpets, ropes, seat belts, furniture, computers, and even spare parts of the human body. It has played an important part : in our lives for over 50 years.

1.   Julian Hill was a/ an                     .