Answer:
all ik is that it's has something to do with a printing press
Answer:
I think its C sorry if its wrong.
Answer:
On March 3, 1871, President Ulysses S. Grant signed into law the first U.S. civil service reform legislation, which had been passed by Congress. The act created the United States Civil Service Commission, that was implemented by President Grant and funded for two years by Congress lasting until 1874.
Explanation:
That would be NaCl(table salt) N2(basically the only way to gen nitrogen) and H2O(water). the last picture picture 4
1 2 3 all have elements in them