Problem: Given the question: What is the missing first step of the following process:  -  The items are sorted - Trash is removed from everything else - Goes to a landfill - The items go into a baler machine for each kind of material - They come out as bales - The bales are shipped to manufacturers to use to make products.
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The answer is:
Items are collected


Problem: Given the question: What is the missing first step of the following process:  -  The oxygen passes through the bronchial tubes to the lungs - The oxygen is moved into the bloodstream - Circulates through the body - The cells in the body exchange the oxygen with carbon dioxide - The bloodstream carries the carbon dioxide back to the lungs - The lungs expel the carbon dioxide through the nose and mouth.
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The answer is:
A person breathes in oxygen


Problem: Given the question: What is the missing first step of the following process:  -  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 - When a toothpick inserted into the cake comes out clean, the cake is done baking -
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The answer is:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
To bake a cake you first need to gather your ingredients