When you heat air it expands. When air expands it becomes less dense than the air around it, in turn making it rise.
Hope that helped
Lincoln thought of making a colony for freed blacks in Central or South America however the idea was argued by American Negroes and some leaders themselves, hence Lincoln abandoned the idea. He was faced with a great dilemma that he felt the Constitution did not give him or the Congress authority to infringe on a state's right to allow slavery itself. It would also mean that citizenship of a slave would mean to allow blacks to serve in the Civil War as soldiers but he was reluctant to do so. Thus the idea of emancipation occurred. The Emancipation Proclamation would be issued reluctantly because Lincoln knew that this proclamation would be perceived as a humanitarian gesture, resulting in the border states seceding and there will be more serious racial backlash in the northern cities, plus reducing the chances of receiving financial support from England or France to the south.
Answer:by advertising the unfamiliar goods in ads in magazines.
Or businesses worked hard to create markets for these new
products. On bus benches, In news papers and in stores.
-spread Islam to Iran and Afghanistan, go's with: -Arabs
-spread Islam into Hindu-dominated India, go's with: -Ghaznavids
-traveled trade routes to spread Islam, go's with: -Muslim missionaries
Hoped this helped! (Again)