To keep disease from spreading throughout a city, it's important to have a good system to remove waste. a. drainage b. reservoir c. irrigation d. sanitation

Sanitation system

Explanation:

Most civilizations would have improved sanitation by carrying waste away from the cities.

b. sec, foreign relations

accomplishment : zachary taylor’s was a national war hero in his battle in an mexican war

explanation:

he was known as a national war hero for his battles in the mexican war, taylor was elected as the 12th president of the united states in 1849. he led the nation during its debates on slavery and southern secession. after serving only 16 months in office, taylor died from cholera morbus on july 9,