input question: What is the missing first step of the following process: - The cold water forms ice crystals - The ice crystals grow by absorbing surrounding water droplets - Form snowflakes - The snowflakes fall to the ground.???
output answer: Water in the clouds becomes very cold

What is the missing first step of the following process: - Falls onto the ground - The acid rain starts scouring rocks - Destroys vegetation - The lack of vegetation alters the surrounding environment.
----
Answer: Acid rain is produced by chemicals that reach into the atmosphere

Q: What is the missing first step of the following process: - These plants die - The soil gains organic material - The soil becomes more fertile - Larger plants are able to be supported - Trees eventually grow.
A: Grass and small plants grow in an area

Question: What is the missing first step of the following process: - Cells in the pancreas release insulin - Insulin causes the body to absorb glucose from the blood - Blood sugar goes back to normal - Blood sugar is too low - The amount of insulin goes down - Cells in the pancreas release glucagon - The liver turns stored glycogen into glucose - The liver releases the glucose into the blood - Blood sugar goes back to normal.
Answer: Blood sugar levels increase after a meal

[Q]: What is the missing first step of the following process: - The bird collects bits of sticks and grass - The sticks and grasses are placed between support branches - Leaves, mud and spider webs are added to the sticks - The mud, leaves and webs glue the sticks together - The solid nest supports the eggs -
****
[A]: A bird picks a spot high spot, often in a tree

Problem: Given the question: What is the missing first step of the following process: - The sweat changes into a gas - Heat is drawn from the sweat - This process draws heat from the body - The evaporation also cools the remaining sweat on the body.
++++++++++++++++++++++++++++++++
The answer is:
As the sweat evaporates the sweat sheds molecules into the air