input: Please answer the following: What is the final step of the following process: - You breathe in - Air goes through all the little branches in your lungs to fill up the air sacs, or alveoli - Oxygen goes through the walls of the alveoli and into the capillaries - The oxygen goes into the bloodstream - Oxygen is left and carbon dioxide is picked up
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output: You breathe it out through your lungs

Please answer this: 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
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Answer: The iron starts to rust.

Problem: What is the final step of the following process: - A bird picks a spot high spot, often in a tree - The bird collects bits of sticks and grass - The sticks and grasses are placed between support branches - Leaves, mud and spider webs are added to the sticks - The mud, leaves and webs glue the sticks together

A: The solid nest supports the eggs

Problem: Given the question: What is the final step of the following process: - Body temperature rises - The brain tells blood vessels to dilate - The sweat glands become active - Moisture is released from the pores - The moisture evaporates
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The answer is:
The evaporation causes cooling.

input question: What is the final step of the following process: - To bake a cake you first need to gather your ingredients - Preheat the oven to desired baking temperature - Grease your preferred cake pan with crisco or butter or other non-stick spray - Add eggs and vegetable oil to the dry ingredients - Stir or whisk until all the dry flour has been absorbed - Pour the batter into the greased cake pan - Place cake pan into the oven for the required time???
output answer: When a toothpick inserted into the cake comes out clean, the cake is done baking

input question: What is the final step of the following process: - A star forms - The star does not have enough mass to become a neutron star - The star goes through a change in its core and bonds helium to carbon and oxygen - The star becomes a red giant - A mass of carbon and oxygen builds up in the center of the star - The star sheds its outside layers and becomes a nebula???
output answer:
The star leaves behind the core which becomes a dwarf star.