What is a crucial question news editors and producers usually ask themselves when it comes to deciding whether to cover something?
a. will this ruin someones reputation?
b. will someone sue our media outlet if we do this story?
c. why didn't i go to law school?
d how would i tell the story?

the type of supporting detail is fact!

the following key ideas correctly express the key sentence.

restate key idea: most people can learn to swim in ten short lessons.

restate key idea: the majority of water-accident victims require mouth-to-mouth breathing.

restate key idea: an empty, tightly closed gallon jug will support a tired swimmer.  

restate key idea: first aid is to prevent accidents as well as assist in rescue.

explanation: the key idea needs to have the same topic as the key sentence (drowning and safety).

your answer is c) experiments with water vapor showed that elements combine in specific proportions.

about what?

lo