Problem: Given the question: What is the missing first step of the following process:  -  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 - The lungs expel through the nose or mouth back into the environment.
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The answer is:
You breathe oxygen into your body through the nose or mouth

input question: What is the missing first step of the following process:  -  Add water into the tray - You insert the tray into a freezer - The water molecules begin to slow down - The water becomes ice - The ice cubes are ready.???
output answer: You take a tray

What is the missing first step of the following process:  -  The basidia gives off spores - The spores germinate - The spores create Hyphae - Multiple Hyphae meet and converge - They join with Mycelium - A hyphal knot forms in the ground - A primordia shoots out of the ground - A mushroom cap is formed.
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Answer: A mushroom gives off gills lined with basidia

Q: What is the missing first step of the following process:  -  The heated water evaporates - The salt is left behind - The evaporated water condenses on a cold surface - The evaporated water is collected - The process is repeated - More salt is removed from the water.
A: Water is heated

Question: What is the missing first step of the following process:  -  These substances rise into the high atmosphere - They react with water and oxygen - This creates a more acidic rain - The rain with the high acid content falls.
Answer: Chemicals like sulfur dioxide and nitrogen are released into the air

Please answer this: What is the missing first step of the following process:  -  The shaft of the turbine spins - Shaft is connected to a generator - The generator uses the spins of the shaft to rotate a rotor - The rotor spins inside the core, which has magnets inside surrounded by wire loops inside - The spinning of the rotor in the core generates electricity -
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Answer:
Wind passes the turbines and moves the blades