To paraphrase is to restate another author 's point in your own words. When you paraphrase, you don't need to use quotation marks, but you still need to give credit to the author and provide a citation.
when productivity increases, the standard of living increases because income grows.
productivity is directly proportional to the standard of living.
I assume you mean WWI as there were only two. In WWI Americans participated. Many of the able men went to war. While the women, children, and disabled stayed and helped with the war effort. Most of the effort back home was from the women.
It's very obvious that the shelter pictured in this handbook was designed to help Americans survive <span>(4)nuclear war.</span>