Please answer this: What is the missing first step of the following process: - Is exposed to air - A chemical reaction occurs - The iron starts to oxidize - The iron starts to rust.
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Answer: Iron is exposed to oxygen

Problem: What is the missing first step of the following process: - Two types of proteins exist in filaments in the muscles - The filaments move when the brain instructs them to - The motion of the filaments cause the muscle to shorten and contract - Opposing pairs of muscles exist in order to provide the necessary range of motion.

A: Electrical signals in the brain travel through nerves to muscles

Problem: Given the question: What is the missing first step of the following process: - In this stage the chromosomes become visible and the centrioles separate and move to opposite poles of the cell - In prophase the chromosomes become visible and the centrioles separate and move to opposite poles of the cell - In metaphase the chromosomes line up across the center of the cell and become connected to the spindle fiber at their centromere - In anaphase the sister chromatids separate into individual chromosomes and are pulled apart - During telophase the chromosomes gather at opposite ends of the cell and lose their distinct rod-like shapes - Two new nuclear membranes then form around each of the two regions of DNA and the spindle fibers disappear.
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The answer is:
Prophase is the first and longest stage of mitosis

input question: What is the missing first step of the following process: - Enters the lungs - The oxygen fills the sacs in your lungs - Carbon dioxide is removed from the lungs and exhaled - The oxygen is pass throughout your body.???
output answer: Air is taken through the mouth

What is the missing first step of the following process: - The aluminum is collected - Taken to a treatment plant - The aluminum is sorted and cleaned ready for reprocessing - The aluminum is re-melted - Turned into molten aluminum - The aluminum is made into large blocks called ingots - The ingots are sent to mills to be rolled out - The rolled out product is made into new aluminum products.
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Answer: The consumer throws aluminum cans and foil into a recycle bin

Q: What is the missing first step of the following process: - A baby bird forms within the egg if it is fertilized - The baby bird begins pecking out of the egg - The baby bird is unable to fly to get food - The mother bird must feed the baby bird food - The bird grows stronger and grows wings - The bird is able to fly - The bird is able to leave the nest and find food - The bird is able to reproduce.
A:
An egg is laid by a mother bird