[Q]: - Coal is burned in a boiler - Steam is produced under pressure - Flows into a turbine - The turbine spins What might be the last step of the process?
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[A]: Creates electricity.

[Q]: - Air is taken through the mouth - Enters the lungs - The oxygen fills the sacs in your lungs - Carbon dioxide is removed from the lungs and exhaled What might be the last step of the process?
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[A]: The oxygen is pass throughout your body.

[Q]: - He air we breathe contains oxygen and other gases - Once in the lungs, oxygen is moved into the bloodstream and carried through your body - At each cell in your body, oxygen is exchanged for a waste gas called carbon dioxide - Your bloodstream then carries this waste gas back to the lungs where it is removed from the blood stream and then exhaled What might be the last step of the process?
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[A]: Your lungs and respiratory system automatically perform this vital process, called gas exchange

[Q]: - You breathe in - Air goes through all the little branches in your lungs to fill up the air sacs, or alveoli - Oxygen goes through the walls of the alveoli and into the capillaries - The oxygen goes into the bloodstream - Oxygen is left and carbon dioxide is picked up What might be the last step of the process?
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[A]:
You breathe it out through your lungs