Which is NOT a benefit of keeping the Chesapeake Bay clean? 1. Fewer Estuaries
2. Climate Stability
3. Aesthetic Value

I think it would be number 1.

Explanation:

I think this because one benefit of keeping the Chesapeake bay clean would mean climate stability would go up because there is not so much polution. And number 3 means anything of value and the Chesapeake bay is of value

it brings together the military and civilian sectors of society to harness the total power of the nation. it is the mechanism that facilitates the successful prosecution of any conflict.it brings together the military and civilian sectors of society to harness the total power of the nation. it is the mechanism that facilitates the successful prosecution of any conflict.

d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."