The enforcment of clean air regulations and providing measures to prevent health epidemics, such as free or below-cost vaccinations, are public services provided by
A. government
B. consumers
C. monopolies
D. industries

the answer is a, salt plain

although the crusades failed to capture jerusalem, they had several major impacts on western europe. they increased the authority of the king: sometimes nobles died in battle without leaving an heir in which case the king got their land. kings passed taxes to pay for the crusades.

when we think of a­ncient paga­n kings, the ideas of justice and fairness probably aren't the first things to come to mind. we moderns may be more likely to imagine fickle, power-hungry despots who were ready to put someone to death on a whim. but king hammurabi, who ruled a prosperous and thriving babyloniaalmost four millennia ago, doesn't quite fit that mold. he claimed to have protect the weak from oppression, and scholars believe he fostered an atmosphere of justice and righteousness for his people.

this belief is based on an object that was discovered only a century ago. it has already earned a place alongside the rosetta stone as one of the most important artifacts of the ancient world. this stela (stone pillar) bears the inscription of the code of hammurabi, and it has shed light on the laws, culture and life in babylonia.

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