S1: This weather-vane often tops a church spire, tower or high building.
P : They are only wind-vanes.
Q : Neither alone can tell us what the weather will be.
R : They are designed to point to direction from which the wind is coming.
S : Just as the barometer only tells us the pressure of air, the weather-vane tells us the direction of wind.
S6: The weather-vane can, however give us some indication of other.
The Proper sequence should be:
A. PQRS
B. PSRQ
C. PRSQ
D. SPQR
Answer: Option D

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