If this one person planted 40 millions trees, what can you do to make at least a minimum impact to reduce humankind's impact on Earth? *

recycle, use less nonrenewable resources, dont do pollution, dont litter. Take care of our Earth <3 there is no backup planet..

Explanation:

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.