[Q]: What is the missing first step of the following process: - The earth changes energy from the sun into heat - Heat rises from the ground - Greenhouse gas molecules in the atmosphere prevent the heat from going into space - The temperature of the earth increases - The temperature continues to rise and melts the polar ice caps - The temperature rises even faster.
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[A]: Greenhouse gases are released into the air by human activities

input: Please answer the following: 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.
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output: Air is taken through the mouth

Please answer this: What is the missing first step of the following process: - Food is chewed and mixed with saliva (spit) - Food travels down the esophagus (throat) - Food travels into the stomach - Acid in the stomach breaks the food down further - Food travels into the small intestine - Nutrients from food are absorbed into the blood stream - Food travels into the large intestine - Most of the remaining material is now waste - The waste is eventually removed from the body.
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Answer: Food is put into mouth

Problem: What is the missing first step of the following process: - Above the oven is a tank of water that is sealed - The tank of water begins to boil above the oven - A the water boils steam is created - The steam is denser than air so it needs a place to go - The steam is forced out of the tank and into a piston - The piston moves up - The valve of the piston closes - The valve on the next piston opens - The steam fills the next piston, driving it up, and the other one down -

A: A fuel is heated in an oven

Problem: Given the question: What is the missing first step of the following process: - Magma crystalizes - Lava cools on the surface - Lava crystalizes - Minerals dissolved in water crystlize.
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The answer is:
Magma cools inside the crust

Problem: 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.

A:
A satellite's need is determined