How does the time between the arrival of S and P waves relate to the distance of the station to the epicenter?

Which is not a standard weather variable? a. air pressure b. moon phase c. temperature d. wind speed

Witch one is it soo it the the question b.a,b,c,d

Why did the belgian parliament pass laws to decentralize its government? a. to increase trade with neighboring luxembourg b. to decrease the political power enjoyed by the flemish c. to enable belgium to join the european union d. to reduce tensions between belgium's two main ethnic groups