Which of these presidents most recently became president by succession

Line of succession US president

Explanation:

provided for succession to the presidency, in the event both the office of the president and the vice president were vacant, by, first, the president pro tempore of the Senate, followed by, if need be, the speaker of the House.

i think u are supposed to write a long-essay answers to the long-essay questions

i think the answer is the one about environmental and social health.

hope this