The correct answer should be - a botanist who s<span>tudied nature to uncover why a certain plant kept dying.
The most important principle of Enlightenment is reason and knowledge - so instead on relying on superstition and unreliable facts, this person decided to actually explore and study nature further to reach a conclusion him/herself.
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The correct answer would be : Woodrow Wilson
I hope that this helps you !
b) show strength as President of the Union that wanted the Southern States back.
Hope I helped! ( Smiles )