Please answer this: What is the missing first step of the following process: - The recyclable materials go to a recycling center - The recycling center further separates the materials - Large equipment compacts the materials into bales - The recyclable materials are shipped to other recycling centers - The other recycling centers further process the materials that center specializes in - The materials are purchased by manufacturers - The manufacturers process the recycled materials the same way they would use new materials - The recycled materials are incorporated into new products.
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Answer: People separate different materials to be recycled

Please answer this: What is the missing first step of the following process: - The water combines with carbon dioxide in the air to form carbonic acid - As the acid is formed, the iron starts to dissolve - Some of the water breaks down into hydrogen and oxygen - The free oxygen and dissolved iron bond together - They form iron oxide, which is rust -
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Answer: Water comes into contact with something made of iron

Please answer this: What is the missing first step of the following process: - Water droplets are in clouds - The air gets cold - Water droplets turn into ice crystals - Ice crystals in clouds stick together and become snowflakes.
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Answer:
Water evaporates from the ground up to the sky