Jonas Salk<span> </span><span>was an American </span>medical researcher<span> and </span>virologist<span>. He discovered and developed one of the first successful </span>polio vaccines in the 1950's.
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They transformed peacetime industries into war industries.
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The correct answer of the given question above would be option D. The Dred Scott decision influenced the presidential elections of 1860 since the decision strengthened the Republican Party, which won the election. This <span>outcry over the Dred Scott decision urged Northerners to vote Republican, to represent their stance against slavery, by electing Abraham Lincoln as President of the United States in 1860. Hope this answers your question.</span>
A)France....industrrialiasation was heavily dominated by govt
