Answer:
With the Adams-Onis treaty
Explanation:
Spain managed to conquer lot of territory in the New World without any particular problem, but a problem arose later as Spain didn't had enough people to settle all the areas that it had conquered. One of those areas was Florida. The Spanish lacked people to make large and strong settlements in Florida, and on top of it, they were in constant conflict with the neighboring Georgia, thus Florida became a burden. In order to calm things down, the Spanish and the United States set on a negotiating table. Through negotiations, Spain gave Florida to the United States, while the United States backed off from the troublesome boundary along the Sabine River in Spanish Texas.
Transcontinental Railroads, (brainliest would be awesome) :)
Slavery made it to where families were split apart, and were unable to keep in contact. Mothers couldn't tend to their children enough, and often children were made to also be slaves. Children also got beat, and were unable to eat the correct amount of proportions to stay healthy, children started "Helping" the parents at a young age.
<span>a. Lister’s work was only made possible by Pasteur’s discoveries.
Pasteur first theorized the cause of infection to be germs. Lister built on the "germ theory" and created the ideas of sterile surgery.
Both Pasteur and Lister are credited for revolutionizing surgery to become a sterile process. Without Pasteur's "germ theory", Lister would not have had a theory to work from. The two scientists also corresponded with one another improving the process for sterilization. </span>