S<sub>1</sub>:This weather-vane often tops a church spire, tower or high building.<br>P :They are only wind-vanes.<br>Q :Neither alone can tell us what the weather will be.<br>R :They are designed to point to direction from which the wind is coming.<br>S :Just as the barometer only tells us the pressure of air, the weather-vane tells us the direction of wind.<br>S<sub>6</sub>:The weather-vane can, however give us some indication of other.<br><br>The Proper sequence should be:

Correct Answer: SPQR
Just as the barometer only tells us the pressure of air, the weather-vane tells us the direction of wind. They are only wind-vanes. Neither alone can tell us what the weather will be. They are designed to point to direction from which the wind is coming.