input question: What is the final step of the following process: - Energy builds up in the crust of the earth - The energy causes the fault lines give way - The earth's plates move - The energy radiates outward from the fault in all directions???
output answer: The seismic waves shake the earth as they move through it.

What is the final step of the following process: - Chloroplasts in the leaf of the plant traps light from the sun - The roots absorb water and minerals from the soil - This combination of water and minerals flows from the stem into the leaf - Carbon dioxide enters the leaf - Light, water and minerals, and the carbon dioxide all mix together - This mixture forms sugar (glucose) which is what the plant eats
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Answer: Oxygen goes out of the leaf through the stomata

Q: What is the final step of the following process: - A butterfly starts as an egg - The egg hatches - A larva emerges - The larva eats and grows - The larva sheds its skin - The larva enters a chrysalis - The pupa grows inside the chrysalis - The adult butterfly exits the chrysalis - The adult butterfly is now fully grown
A: The adult butterfly lays more eggs.

Question: What is the final step of the following process: - They expand to take the air in - The cells of the lung hold the air - They take in the air and remove the Oxygen - They inflate and all the bad air leaves through the mouth
Answer: They do it all over again.

[Q]: What is the final step of the following process: - Two birds meet each other - Egg is produced after fertilziation - Mother sits on egg until it hatches - Bird Hatches - Grows up - Flee the next - Starts family
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[A]: Dies.

Problem: Given the question: What is the final step of the following process: - A large rocky area is formed - The rocky area has a higher elevation than the surrounding areas - Water from precipitation falls in the area - The water forms a stream - The stream flows towards lower elevation - The stream becomes a river - The river continues to flow along the same path for a long time - The river erodes the rocky area that it touches
++++++++++++++++++++++++++++++++
The answer is:
The eroded area cuts deeply into the rock.