Which is the theme of my antonia Immigrants on the prairie.
Jim discovers more about human nature when he moves to town.
Daughters of Black Hawk merchants didn’t work very hard.
The American Dream is realized through hard work.

d. the american dream is realized through hard work

multiplying and dividing the two decimals and the eqations by the same number of the overalls

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.