I believe the answer is the second one :)
Answer:
The Metric Act of 1866, enacted on 28 July 1866 , legally recognized the metric system of measurement in the US. It's sometimes referred to as the Kasson Act, after Congressman John A. Kasson of Iowa, who chaired the House Committee on Coinage, Weights, and Measures.
Explanation:
Answer: France
Explanation: Louisiana and much of the UA at the time was purchased in what was called the Louisiana Contract by Thomas a Jefferson from a France. I believe the price was 3 million dollars.
In the 1962 book Silent Spring, Carson wrote how pesticides killed everything and should be called biocides because of that. Even though she had her worries about acute pesticide poisoning, she was really alarmed about slow pesticide poisoning of everything, like humans and plants. Her intentions on the book were to educate people about pesticide risks, trying to transform the "myth" of pesticides into reality for the masses.