Answer for the 4th sentence would be: stay
Answer: B Wexler cites expert research that current methods are resulting in a disheartening lack of civics knowledge.
Explanation: EDGE 2021 !
A more descriptive, and negative connotation. It better describes the noun then unpleasant.
I beleive its plants nitrogen is limiting nutrients for
I think the answer is c but I’m not for sure