In 1903, Marie curie won the Nobel prize for which of the following? A. She realized that pitchblende was more radioactive than uranium
B. She developed ways to separate radium from other materials
C. She and her husband discovered two new chemical elements, polonium and radium
D. She helped discover that radioactive materials are like threatening

the main reason that the constitution did not proclaim all men to be free and equal is because of the issue of slavery.

hello your answer is d

so, based on the research i've done. the u.s. government were always on a wild goose chase just to take down castro. he then retired his trone to his brother raul in 2008 due to some health issues. so it's obvious your answer would be:

castro had no allies from which he could receive aid.

hope this and have a fantastic day!

                                                    -wolfiewolffromsketch