You hear about a magnitude 8.0 earthquake on the news. Someone says "That doesn't sound too bad. An 8.0 is just one more than the 7.0 we had here last year." Explain why that's not the right way to think about the moment magnitude scale.

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.

what are the options? add them, then i will be glad to .