Answer:
all of the above were Douglas' audience but the most influenced people amongst the above were abolitionists.
It is 4. because it says in the paragraph and I quote: "helium has a very low density. it is used in daily weather balloons to carry instruments that record, tempature, humidy, and pressure readings in the atmosphere.
It would be 'common'. This is because they all want to keep others safe while they are on their job.
Answer:
Pathos
Pathos is an emotional appeal to the audience to evoke certain feelings. For example, the speaker wants the audience to feel anger ("insurgent agents were in the city seeking to destroy it without war - seeking to dissolve the Union, and divide effects, by negotiation.")