input: Please answer the following: - The earth changes energy from the sun into heat - Heat rises from the ground - Greenhouse gas molecules in the atmosphere prevent the heat from going into space - The temperature of the earth increases - The temperature continues to rise and melts the polar ice caps - The temperature rises even faster. What might be the first step of the process?
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output: Greenhouse gases are released into the air by human activities

input: Please answer the following: - Recycling trucks pick up the items that are able to be reused - The recyclable items travel to a recycling plant - The items are sorted by what they are made of - The items are broken down into small parts - The small parts are melted to make new raw parts - The raw parts are sold to manufactures to make new items. What might be the first step of the process?
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output: Items that can be reused are placed into recycling containers

input: Please answer the following: - The water freezes and thaws - Cracks form in the rocks - Cracks also form when rocks heat up - The rocks slowly break down. What might be the first step of the process?
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output: Water seeps into rocks

input: Please answer the following: - Babies become infants - Infants become children - Children learn skills - Children become teenagers - Teenagers undergo puberty - Teenagers become adults - Adults have children - Adults become elderly - Elderly humans die. What might be the first step of the process?
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output:
Humans are born as babies