[Q]: - Air is drawn in through the mouth - The air goes down the esophagus - The air moves into the lungs - The carbon dioxide is removed - The remaining oxygen enters the body What might be the last step of the process?
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[A]: The remaining carbon dioxide is expelled through the mouth.
input: Please answer the following: - Magma comes up to the surface of the earth - The magma cools - Particles inside the magma move closer together - Crystals are formed What might be the last step of the process?
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output: The crystals contain minerals.
Please answer this: - Boil salt water - The water will turn into water vapor - Collect the water vapor - Allow the water vapor to cool - The water vapor will turn into liquid water What might be the last step of the process?
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Answer: The salt will be separated from the water.
Problem: - The animal eats large quantities of food that will be stored as fat - Winter comes and the animal finds a place to hibernate - Over a period of days, the animal's heart rate and breathing rate drop slowly - Electrical activity in the brain almost ceases completely, though some areas remain active What might be the last step of the process?

A: The animal has entered hibernation mode
Problem: Given the question: - Acid rain makes waters acidic - Causes them to absorb aluminum from soil - The water runs off from the soil into lakes, streams, etc - Fish and their eggs die - Frogs and plants die - Insects and other wildlife die What might be the last step of the process?
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The answer is:
The ecosystem is out of balance, causing further problems
Problem: - Air enters the nose or mouth and travels through the windpipe into the lungs - The lungs have a series of smaller and finer tubes and sacs - Air reaches the smallest and finest air sacs called alveoli - Oxygen travels from the alveoli into the blood - Oxygen-rich blood is carried to the heart - Oxygen-rich blood is pumped throughout the body by the heart - Cells take in the oxygen rich blood and release carbon dioxide rich blood - The carbon dioxide rich blood travels to the lungs What might be the last step of the process?

A:
Carbon dioxide travels through the throat and is exhaled.