input question: What is the final step of the following process: - Iron is exposed to oxygen - Is exposed to air - A chemical reaction occurs - The iron starts to oxidize???
output answer: The iron starts to rust.

What is the final step of the following process: - Mix flour, baking powder, sugar, and salt into a bowl - Mix in milk, eggs, and melted butter - Mix until smooth - Heat a griddle or frying pan to medium high
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Answer: Pour batter onto the griddle

Q: What is the final step of the following process: - Limestone is located under the soil - Rain picks up carbon dioxide as it falls to earth - The rain falls on the soil over the limestone - The carbon dioxide in the rain washes through the soil - The carbon dioxide turns into acid - The acid in the rain gets to the limestone below the soil - The acid dissolves the limestone - Acid continues to erode the limestone with more rain over time
A: The eroded limestone sometimes forms caves.

Question: What is the final step of the following process: - A hurricane usually starts as an organized thunderstorm activity that stretches at least 100 miles across and maintains its identity for more than 24 hours - Under the right conditions it can develop further and start to spin around a low-pressure center - If it develops it's classified as a 'tropical cyclone' or 'tropical depression' - If the system strengthens and wind speeds rise past 39 mph, the system is dubbed a 'tropical storm'
Answer: If the pressure in the center drops even further and the winds really pick up and forms a clearly defined 'eye' it's a hurricane

[Q]: What is the final step of the following process: - The salt water is heated - As the saltwater is heated the water becomes a gas - The salt particles sink to the bottom of the container - Gaseous water is piped into another container - Allowed to cool - The salt particles are left behind in the first container
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[A]: The second container contains fresh water.

Problem: Given the question: What is the final step of the following process: - A machine called a pulverizer grinds the coal into a fine powder - The coal powder mixes with hot air, which helps the coal burn more efficiently, and the mixture moves to the furnace - The burning coal heats water in a boiler, creating steam - Steam released from the boiler powers an engine called a turbine, transforming heat energy from burning coal into mechanical energy that spins the turbine engine - The spinning turbine is used to power a generator, a machine that turns mechanical energy into electric energy - This happens when magnets inside a copper coil in the generator spin - A condenser cools the steam moving through the turbine - As the steam is condensed, it turns back into water
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The answer is:
The water returns to the boiler, and the cycle begins again