Answer:
1st question... first download 2nd question..2nd download 3rd question...3rd download
Explanation:
hoped this helped mark me brainliest plz
Four free states west of the Mississippi River were Iowa (1846), California (1850), Minnesota (1858), and Oregon (1859) !
The correct answer is D. The need for coinage of silver money
The letter of the Einstein-Szilard warned President Roosevelt in 1939 that Germany was experimenting for nuclear weapons. The letter was written by Szilard with his two assistants Hungarian physicists (Teller and Wigner) and was signed by Albert Einstein. It stated that Germany may start making nuclear bombs and that the United States had better watch out for this.
President Franklin Roosevelt had a swift response to this and started the Manhattan Project, which was a research project that developed and produced the first atomic explosive/bomb during the time of Second World War.
Very bad they were killed and they were dying by the numbers