Can somebody help me out I will give you points if you get it right

One of the observations by someone who was present for roosevelt's speech was, "its clarity, logic, and sincerity struck us." quote one example from the text that you would describe as clear, logical, or sincere. explain the language in your chosen quote correctly, and tell why it can be considered clear, logical, or sincere.

Dalton developed the first model of the atom that showed the structure of the inside of an atom

Why did the outbreak of world war 2 create a need for new military bases across the country?