It has steadily declined. The unions are not used nowadays at all. In the 70s approximately 35% of people were unionized. In 2013 only 11.5% of workers belong in a union and fight for workers rights. Unions strength has weakened because people are not interested in them.
Quite a bit land resulting from the Morrill-Land Grant Act was purchased by land speculators. The correct answer is Morrill-Land Grant Act.
One of the main reasons why Bismarck wanted to control the territories of Alsace and Lorraine was mostly because both territories were plentiful and useful territories to have in any country as they were quite developed. It was also good for strategic reasons.
C. win support from european powers sorry if im late to this lol