input: Please answer the following: What is the missing first step of the following process: - The bird collects twigs and other refuse - The bird makes a flat base with twigs - The bird makes sides with twigs and other things - The bird adds softer material to the inside - The nest is done.
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output: The bird picks a tree

Please answer this: What is the missing first step of the following process: - Coal is pulverized into fine powder - The coal is mixed with hot air - The coal and hot air are blown into a boiler - The coal and hot air burn over a fire - Highly purified water is pumped through pipes in the boiler - The water turns into steam - The steam presses against turbines - The turbines spin - Electricity is produced.
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Answer: Coal is mined out of the ground

Problem: What is the missing first step of the following process: - The oil is transported to stores - Oil is purchased by homeowners - Oil is placed into a stove in the house - The oil is lit on fire, and burns for a long time - The warm air off of the oil travels through the house -

A: Oil is gathered through mining operations

Problem: Given the question: What is the missing first step of the following process: - Cells in the pancrease release glucagon - The liver in response turns the glucagon into glucose - And releases it into the blood - The blood sugar levels are restored.
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The answer is:
The blood sugar drops in a body

input question: What is the missing first step of the following process: - The roots of the growing plants start to break up the rock - The plant acids dissolve the rock - The rock is broken down into smaller pieces - Erosion begins.???
output answer: Plants start growing on or near the rocks

input 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.???
output answer:
Chemicals like sulfur dioxide and nitrogen are released into the air