The MSDS for sodium hydroxide gives it a health rating of 3, a flammability rating of O, and a reactivity rating of 1. According to the MSDS, which best describes sodium hydroxide?

A. highly corrosive but not highly flammable
B. highly reactive and corrosive
C. highly flammable but not highly corrosive
D. not highly reactive or corrosive

I’m not exactly sure what your trying to ask, but if it’s how an organelle is similar to a body system or a part a nucleus is like a in function. but i don’t fully understand what you’re trying to ask

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Answer : romans built laws to manage the pollution which was lead by smoke produced by the factories.

they had the law tat factories that produces smoke cannot be built near residential buildings.

building of proper sewage system was done to ensure that the waste is carried away from the humans so that they do not get diseases from it.

also they built water systems to provide water in those areas which are drought prone.