Question: What is the missing first step of the following process:  -  The water freezes and thaws - Cracks form in the rocks - Cracks also form when rocks heat up - The rocks slowly break down.
Answer: Water seeps into rocks

[Q]: What is the missing first step of the following process:  -  The air enters the mouth and nose - The diaphragm contracts - Air fills all the sacks in the lungs - Oxygen passes through the sacks into capillaries - The blood is passed to the blood in the capillaries - The blood carries the oxygen to the heart - The heart pumps the oxygenated blood to the body.
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[A]: You inhale

input: Please answer the following: What is the missing first step of the following process:  -  Food is chewed and mixed with saliva (spit) - Food travels down the esophagus (throat) - Food travels into the stomach - Acid in the stomach breaks the food down further - Food travels into the small intestine - Nutrients from food are absorbed into the blood stream - Food travels into the large intestine - Most of the remaining material is now waste - The waste is eventually removed from the body.
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output: Food is put into mouth

Please answer this: What is the missing first step of the following process:  -  Release them into the air by process of sporulation - Spores are carried by the wind - Land in a hospitable growing environment - The spores germinate into the soil - The mushroom starts growing - The adult mushroom produce spores of its own to repeat the process.
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Answer: Adult mushrooms produce spores

Problem: What is the missing first step of the following process:  -  The dishwasher is closed - The dishwasher heats water to a hotter temperature - The dishwasher directs water toward the dishes through jets - The dishwasher adds detergent - The dirty water drains out - The dishwasher sprays more water to rinse the dishes off - The water drains out again - The dishwasher directs warm air toward the dishes to dry them - The dishes can be removed.

A: Dirty dishes are placed in the dishwasher

input: Please answer the following: What is the missing first step of the following process:  -  The particles remove small pieces of the rock each time they touch the rocks - The particles continue to hit, brush against, or grow against the rocks - The rock eventually is broken apart by this contact - The pieces of the rock are now small rocks - The rock pieces are worn away into smaller and smaller pieces by the same forces -
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output:
Particles in the environment interact with rocks