Please answer this: What is the missing first step of the following process: - Over time, more sediment piles on top - The resulting heat and pressure transforms the organic layer into a dark and waxy substance known as kerogen - Left alone, the kerogen molecules eventually crack - The molecules break up into shorter and lighter molecules composed almost solely of carbon and hydrogen atoms - It will turn into either petroleum or natural gas -
++++++++
Answer: Dead organic material accumulates on the bottom of oceans, riverbeds or swamps, mixing with mud and sand

Problem: What is the missing first step of the following process: - Water seeps into the remains - Minerals dissolved in the water form crystals - Crystalized minerals cause the remains to harden - The minerals form a fossil.

A: An organism dies

Problem: Given the question: What is the missing first step of the following process: - The heated water evaporates - The salt is left behind - The evaporated water condenses on a cold surface - The evaporated water is collected - The process is repeated - More salt is removed from the water.
++++++++++++++++++++++++++++++++
The answer is:
Water is heated

input question: What is the missing first step of the following process: - Fill the tray with water from the faucet - Put the ice cube tray in the freezer - Wait for several hours - The water will freeze and become ice - Remove the ice cube tray from the freezer - Remove the ice cubes from the tray.???
output answer: Take out an ice cube tray

What is the missing first step of the following process: - Water droplets are in clouds - The air gets cold - Water droplets turn into ice crystals - Ice crystals in clouds stick together and become snowflakes.
----
Answer: Water evaporates from the ground up to the sky

Q: What is the missing first step of the following process: - Composition of blood is regulated - Volume of water in blood is kept constant - PH is kept at a constant level - Kidneys help regulate blood pressure - Kidneys stimulate the making of red blood cells - Calcium levels are maintained.
A:
Kidneys filter waste out of blood