input: Please answer the following: - Acid rain makes waters acidic - 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 What might be the last step of the process?
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output: The ecosystem is out of balance, causing further problems

input: Please answer the following: - Coal is burned in a boiler - Steam is produced under pressure - Flows into a turbine - The turbine spins What might be the last step of the process?
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output: Creates electricity.

input: Please answer the following: - A plant dies - The remains of the plant are buried very fast in sediment - The soft parts of the plant decay - The hard parts of the plant are replaced with minerals - The sediment turns into rock - The rock erodes What might be the last step of the process?
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output: The fossil appears on the surface of the ground.

input: Please answer the following: - Plants start growing on or near the rocks - 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 What might be the last step of the process?
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output:
Erosion begins.