Direction: In this section, each item consists of six sentences of a passage. The first and the sixth sentences are given in the beginning as S1 and S6. The middle four sentences in each have been jumbled up and labelled as P, Q, R and S. You are required to find the proper sequence of the four sentences and mark your response accordingly on the Answer Sheet.

S1 : Pasteur began his fruitful scientific investigations when he was a Professor of Chemistry at Strasburg.
P : He made a thorough study of the wine industry in France.
Q : He also found how germs causing changes in materials could be controlled by heat.
R : He thus saved the wine industry from ruin through his work.
S : After careful and extensive investigation he produced the germ theory of fermentation.
S6 : The pasteurization process which he prescribed for wine and beer is used now to safeguard milk too.