Mendel and His Peas Question Worksheet. Some questions I figured out, but I still have questions that aren’t filled out. http://www. dnaftb. org/2/animation. html

This is the website I’m supposed to be using, but it’s a little confusing.

your answer is "the 1950's"

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.

occluded front i think