Needed on 10-12 on graphing 10. in a line graph for these data, what would be the independent variable and on which axis would it be plotted? 11. in a line graph for these data what would be the dependent variable and don which axis would it be plotted? 12. considering the highest and lowest numbers of patients for each year what numbers would be the most appropriate to the list in the vertical axis

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.