input question: What is the final step of the following process: - 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???
output answer: The ecosystem is out of balance, causing further problems

What is the final step of the following process: - Carbon dioxide enters the leaves through the stomates by diffusion - Water is transported to the leaves in the xylem - Energy harvested through light reaction is stored by forming ATP - Carbon dioxide and energy from ATP are used to create sugar - Oxygen exits the leaves through the stomata by diffusion
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Answer: The plant reuses the water or the water exits through the stomata as water vapor.

Q: What is the final step of the following process: - Human industry produces chemical compounds - Chemical compounds rise into the air - Chemical compounds mix with elements in clouds - The affected rain falls to the earth
A: The affected rain can harm natural and man-made objects because of its acidic content.

Question: What is the final step of the following process: - Water in the clouds becomes very cold - The cold water forms ice crystals - The ice crystals grow by absorbing surrounding water droplets - Form snowflakes
Answer: The snowflakes fall to the ground.

[Q]: What is the final step of the following process: - Greenhouse gases are released into the air by human activities - 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
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[A]: The temperature rises even faster.

Problem: Given the question: What is the final step of the following process: - Fluid - Waste enters the kidneys - A processing moment in the kidneys let waste and fluid pass - Prevents larger molecules to pass - Fluid goes back to the bloodstream - Bad waste is removed
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The answer is:
The final product is turned into urine.