SSC CHSL Model Paper 18

QPRS - is correct order of the sentences.
Q: Many different things affect the weather and we have to study them carefully to make an accurate forecast.
P: During a period of drought, stream s and rivers dried up, the cattle died from thirst and were ruined.
R: Ancient Egyptians had no need of weather. In the Nile Valley the weather hardly ever changes.
S: In early times, when there were no instruments like thermometer or the barometer, man looked for tell-tale signs in the sky.
The opening line (S1) of the passage indicates that the central idea being discussed is ‘weather forecasting and its difficulties. Statement Q elaborates the idea by presenting an illustration of this statement S1. The use of the words ‘during a period of drought’ in statement P indicates a shift in ideas, making QP a mandatory pair. Looking at the options, statement S will follow statement R. The correct order of the statements is QPRS