Problem: What is the missing first step of the following process: - The coal is broken down to a smaller material - The coal particles mix with hot air and move in to a boiler - Water in the boiler is pumped and produces steam with the coal - Steam powers turbine blades, which magnetically charge wire coals - The water returns back in to its chamber and the process is repeated -

A: A type of coal must be chosen before the heating can start

Problem: What is the missing first step of the following process: - As the plates move, they exert a great force - When the force is large enough, the crust breaks - The stress is released as energy - The energy moves through the Earth in the form of waves - We feel the earthquake -

A: Plates on the Earth's crust move slowly past each other

Problem: What is the missing first step of the following process: - ITS LAID ON A LEAF OR PLANT - THE EGG HATCHES - THE LARVA COMES OUT(CATERPILLAR) - IT BEGINS TO EAT ON THE LEAF THAT IS WAS BORN ON - CONTINUES TO EAT TO GROW QUICKLY - AFTER ITS GROWN TO FULL LENGHT IT FORMS INTO A PUPA - UNDERGOES METAMORPHOSIS TO BECOME BUTTERFLY - AFTER HE BUTTERFLY IS FOMED IT PUMPS BLOOD INTO ITS WINGS TO GAIN STRENGHT TO BE ABLE TO FLY - TH EBUTTERLFY IS FIANLLY ABLE TO FLY AWAY.

A: EGG

Problem: What is the missing first step of the following process: - Cells with chlorophyll in them capture the light energy - Plants absorb carbon dioxide through their stoma - Plants absorb water through their roots and other parts of themselves - Plants absorb minerals through their roots - Plants convert these inputs into sugars - Sugars can be used as energy sources - Oxygen and water are also produced - Excess water and oxygen are released through stoma and other parts of the plant.

A:
Sunlight shines on plants