Antoine Henri Becquerel was a French physicist who did a lot of work with fluorescent minerals. While conducting some experiments with minerals containing uranium, he discovered , but he did not know it at the time.

How did the spanish-american war affect american expansionism? a.) america took control of hawaii, cuba, and the pacific islands of guam. b.) america took possession of cuba and the philippines. c.) america gained control of puerto rico and hawaii. d.) america gained control of cuba, puerto rico, the pacific island of guam and the philippines.