Fill in the blanks with the correct sphere names to model how spheres are connected when fossil fuels are burned. → anwser

the answer is atmosphere      biosphere

Explanation:

i got it right on my assignment

the correct option is option a

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.