input: Please answer the following: What is the missing first step of the following process: - The sediments become glued together - The glued together parts become hard like cement - The sediment becomes a big rock - The rocks erode slowly - The rocks come apart - The rocks become smaller rocks - The rocks continue to erode into smaller rocks - The process starts again.
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output: Minerals fill spaces between bits of sediment

Please answer this: What is the missing first step of the following process: - A group of people work to design a satellite capable of accomplishing the need - A team designs the physical structure of the satellite - A crew builds the physical satellite - The satellite is packed into a capsule - The satellite capsule is loaded onto a rocket - The rocket is launched into space.
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Answer: A satellite's need is determined

Problem: What is the missing first step of the following process: - Once in the lungs, oxygen is moved into the bloodstream and carried through your body - At each cell in your body, oxygen is exchanged for a waste gas called carbon dioxide - Your bloodstream then carries this waste gas back to the lungs where it is removed from the blood stream and then exhaled - Your lungs and respiratory system automatically perform this vital process, called gas exchange -

A: He air we breathe contains oxygen and other gases

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

input question: What is the missing first step of the following process: - Food is squeezed down the esophagus when you swallow - Acid and enzyme in the stomach break the food down - Releases nutrients - Food then pumped into small intestine - Fluid and enzymes from liver and pancreas pumped into small intestine - Help break food into smallest molecules - Nutrients pass through wall of small intestine - Nutrients absorbed into blood stream - Unused materials passed into large intestine to become fecal matter.???
output answer: An enzyme in saliva begins to break down carbohydrates

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