Why was Marshall hesitant to serve a cabinet officer with a writ?

Because of the difference b/t a cabinet secretary acting according to the president's orders and acting as directed by the law.

Explanation:

i believe

clean air is essential for health and survival

clean air provides nitrogen gas for plant respiration

clean air supplies oxygen that enables living organisms to breathe

hope this

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sorry if this doesn't

answer; ///biological psychologists;