Answer
*police protection: natural monopoly. excludable , not rival
*snow plowing: common resource , excludable, rival
*education: private good, excludable, rival
*rural roads: public goods, neither excludable nor rival
*city streets: common resource (congested) , public goods (un congested).
Work Step by Step
*police force: excludable (may not patrol some neighborhoods). not rival (they have to be wherever the crimes are).
*snow plowing: once area of snowboarding is plowed not excludable. rival plowing one street means not plowing in another.
*education: excludable (you have to pay). rival (spaces left in class).
*rural roads: they are uncontested that is why they are neither
*city streets aren't excludable because anyone has access to them. They are rival because every driver slows down traffic.