input: Please answer the following: - An area of low pressure causes rotation - Several thunderstorms come together around this area - The storm is fed by rising air from warm ocean water evaporating - When the wind speeds reach 74 mph the storm is considered a hurricane. What might be the first step of the process?
++++++++++
output: Thunderstorms form over the ocean

input: Please answer the following: - Over long periods of time rain can hit the limestone - And cause a acidic reaction - The limestone will slowly disintegrate - A large gap with be where the limestone was - Result in the cave. What might be the first step of the process?
++++++++++
output: Some of the rock in the ground is made of limestone

input: Please answer the following: - 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 - The second container contains fresh water. What might be the first step of the process?
++++++++++
output: The salt water is heated

input: Please answer the following: - The water combines with carbon dioxide in the air to form carbonic acid - As the acid is formed, the iron starts to dissolve - Some of the water breaks down into hydrogen and oxygen - The free oxygen and dissolved iron bond together - They form iron oxide, which is rust - What might be the first step of the process?
++++++++++
output:
Water comes into contact with something made of iron