Problem: Given the question: -  The water freezes into ice - The cracks expand - Over time the rocks split - The rocks are now in smaller pieces.  What might be the first step of the process?
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The answer is:
Water gets into cracks in rocks

input question: -  Bloodstream - Cells in the body are attacked - Cells are killed - Different kinds of sickness are formed.  What might be the first step of the process????
output answer: Bacteria enters the body

-  The plants and floor absorb the the sunlight - The absorbed sunlight is converted to heat - The heat cannot escape the glass - The heat is trapped in the greenhouse - The hot air rises - The colder air at the top is pushed to the bottom - The colder air is then warmed by the floor and the plants.  What might be the first step of the process?
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Answer: Sunlight passes through the glass into the greenhouse

Q: -  The isotope is unstable - The isotope emits radiation - The isotope decays - The isotope loses some atomic particles - The isotope turns into a different element - The isotope is finished decaying and emitting radiation.  What might be the first step of the process?
A: An isotope has too many protons

Question: -  Steam is produced under pressure - Flows into a turbine - The turbine spins - Creates electricity.  What might be the first step of the process?
Answer: Coal is burned in a boiler

Please answer this: -  Causes them to absorb aluminum from soil - The water runs off from the soil into lakes, streams, etc - Fish and their eggs die - Frogs and plants die - Insects and other wildlife die - The ecosystem is out of balance, causing further problems -   What might be the first step of the process?
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Answer:
Acid rain makes waters acidic