input question: - Boil salt water - The water will turn into water vapor - Collect the water vapor - Allow the water vapor to cool - The water vapor will turn into liquid water What might be the last step of the process????
output answer: The salt will be separated from the water.

input question: - The bat sends out sound waves from their mouth or nose - The sound waves hit an object - Echoes are produced - The echo returns to the bat's ears - The bat hears the echo What might be the last step of the process????
output answer: The bat can figure out where the object is located.

input question: - Water comes into contact with something made of iron - 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 What might be the last step of the process????
output answer: They form iron oxide, which is rust

input question: - There is a rain cloud in the sky - Small bits of ice within the cloud bump each other - The collisions create electrical charge - Lighter, positively charged particles sink to the bottom of the cloud - Heavier, negatively charges particles rise to the top What might be the last step of the process????
output answer:
When the positive and negative charges grow large enough, a giant spark, called lightning occurs