input question: What is the missing first step of the following process: - The oxygen travels into the lungs - The oxygen binds to hemoglobin proteins within erythrocytes (red blood cells) - The erythrocytes are pumped through the body by the heart - All cells receive the oxygen.???
output answer: Oxygen enters the body through the mouth or nose

input question: What is the missing first step of the following process: - The aluminum is collected - Taken to a treatment plant - The aluminum is sorted and cleaned ready for reprocessing - The aluminum is re-melted - Turned into molten aluminum - The aluminum is made into large blocks called ingots - The ingots are sent to mills to be rolled out - The rolled out product is made into new aluminum products.???
output answer: The consumer throws aluminum cans and foil into a recycle bin

input question: What is the missing first step of the following process: - The wind or water deposits tiny rocks - The rocks become known as sediment - The layers of sediment are pressed together by other layers of sediment on top - Minerals from the rocks in the sediment dissolve - Minerals glue the sediment together into a single rock.???
output answer: Wind or water breaks small pieces off of a rock

input question: What is the missing first step of the following process: - Put the ice cube tray in the freezer - Wait 5 to 6 hours - Take the ice cube tray out of the freezer - Bend the tray slightly to get the ice cubes out and into a drink.???
output answer:
Put water in an ice cube tray