Problem: Given the question: What is the final step of the following process: -  You breathe oxygen into your body through the nose or mouth - The oxygen travels to the lungs through the windpipe - The air sacs in the lungs send the oxygen into the blood stream - The carbon dioxide in the blood stream is transferred to the air sacs
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The answer is:
The lungs expel through the nose or mouth back into the environment.


Problem: Given the question: What is the final step of the following process: -  Salt water is contained in a factory or plant - The water is boiled to a very high tempature - The salt becomes seperated from the water - The salt is removed
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The answer is:
The water is able to be drank at this point.


Problem: Given the question: What is the final step of the following process: -  A larva is born - The caterpillar eats constantly until it grows bigger - The caterpillar starts to form a cocoon around itself - The caterpillar becomes a pupa - After some time the cocoon hatches
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The answer is:

And a butterfly is born.