Pls help me with this question

American troops were worried about cantracting in cuba a. yellow fever b. hepatitis c. polio

Do some research to further analyze the impact of the industrial revolution. look for information that describes both the positive and negative effects of the industrial revolution. you can use the websites listed below to conduct your research. the first three websites provide descriptions of working conditions during the industrial revolution. the last website describes technological advances of the era. if you like, look for other sites that provide information on the topic.1. 2. 3. ~histwhs/h114.dir/h114.webreader/h1 14.read. m.mines. html4.

Which 19th century technological advancement would best allow farmers along the mississippi river in iowa to quickly transport their crops to buyers in louisiana?