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:

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: 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.

Related Questions

How far is point 'R' from Point 'T'? Statement (I): Point 'R' is 5 metres to the north of point 'M'. Point 'U' is 4 metres to the east of point 'R'. Point 'T' is to the west of point 'R' such that points 'U' 'R' and 'T' form a straight line of  metres. Statement (II): Point 'Z' is metres to the south of point 'T'. Point 'U' is  metres to the east of point 'T'. Point 'M' is  metres to the east of point 'Z'. Point 'R' is  metres to the north of point 'M'. Point 'R' lies on the line formed by joining points 'T' and 'U'.