Please answer this: What is the missing first step of the following process: - There is a lot of pressure on the Sun - The pressure forces atoms of hydrogen to fuse together in nuclear reactions - The energy from the reactions gives off different kinds of light - The light travels to the Earth.
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Answer: The gravity of the sun pulls its mass inward

Problem: What is the missing first step of the following process: - The parent(s) incubate the eggs - The eggs hatch - The mother (and sometimes the father) bird take care of the baby birds - The baby birds grow up and get their flight feathers - The young birds learn to fly and leave the nest - The adult birds find mates and mate.

A: A bird lays eggs in a nest

Problem: Given the question: What is the missing first step of the following process: - The egg hatches into a baby bird - Baby bird eats - Grows into an adult bird - The bird finds a mate - The pair build a nest - The birds lay eggs.
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The answer is:
A bird lays an egg

input question: What is the missing first step of the following process: - The lungs remove oxygen from the air - Oxygen diffuses from alveoli in the lungs to the bloodstream - Hemoglobin in red blood cells attaches to the oxygen - Red blood cells carry oxygen all around the body - Oxygen diffuses into cells from capillaries.???
output answer: Air goes into the lungs

What is the missing first step of the following process: - Sediment builds up over the remains - The remains decompose, leaving only trace amounts - The remaining parts over the years are replaced with mineral - A fossil is formed -
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Answer: Animals and plants die in soft soil or mud

Q: What is the missing first step of the following process: - You fill the tray with warm water - You carefully place the tray on an even surface in a freezer that is at least 32 degree Farhenheit, the freezing point of water - The water begins to get colder until it starts to freeze solid - The water expands as it freezes, one of the few liquids that has greater volume as a solid - Because you used warm water, the gasses in the water had evaporated out, so you will have nice clear ice cubes without cracks from the trapped gasses -
A:
You find an empty ice cube tray