Problem: What is the final step of the following process: - 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

A: When the positive and negative charges grow large enough, a giant spark, called lightning occurs

Problem: Given the question: What is the final step of the following process: - You breathe air in - Air enters bronchial tubes - Air is then split into the bronchioles of each lung - Bronchioles have alveoli which are tiny air sacs - Alveoli is surrounded by many small blood vessels - Oxygen passes through alveoli into blood vessels - Blood leaves the lungs as it travels through the body - Blood carries carbon dioxide back to the lungs
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The answer is:
Carbon dioxide released when you exhale.

input question: What is the final step of the following process: - EGG - ITS LAID ON A LEAF OR PLANT - THE EGG HATCHES - THE LARVA COMES OUT(CATERPILLAR) - IT BEGINS TO EAT ON THE LEAF THAT IS WAS BORN ON - CONTINUES TO EAT TO GROW QUICKLY - AFTER ITS GROWN TO FULL LENGHT IT FORMS INTO A PUPA - UNDERGOES METAMORPHOSIS TO BECOME BUTTERFLY - AFTER HE BUTTERFLY IS FOMED IT PUMPS BLOOD INTO ITS WINGS TO GAIN STRENGHT TO BE ABLE TO FLY???
output answer: TH EBUTTERLFY IS FIANLLY ABLE TO FLY AWAY.

What is the final step of the following process: - Bats and other animals produce a high-pitched tone - The sound travels in waves, as sound does - The sound 'bounces' off of a nearby object - The sound wave returns to the bat - The bat hears the echoed sound - Folds in the bat's ear and adaptations in the bat's brain enable it to determine the size, shape, and position of the other object via the properties of the returned sound waves
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Answer: Other animals use echolocation in generally similar ways

Q: What is the final step of the following process: - Chemicals like sulfur dioxide and nitrogen are released into the air - These substances rise into the high atmosphere - They react with water and oxygen - This creates a more acidic rain
A: The rain with the high acid content falls.

[Q]: What is the final step of the following process: - Water comes through a filter - The filter has small pores to catch pollutants - The filter will catch chlorine, heavy metals, and other chemicals - The filter allows water and mineral ions like fluoride to pass through
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[A]:
The water on the other side of the filter is much cleaner