A student created a model of coal formation. She placed gummy worms at the bottom of a cup, then covered them
with a layer of crushed cereal. She pressed down on the layer
of cereal and added a small amount of water to the cup.
She added three more layers of crushed cereal, pressing
down each time and adding a small amount of water
on each layer.
What process in the formation of coal does this model not show
o intense heat from deep below Earth's surface
O pressure from layering sediments
water for the cementation of sediments into rock
o the burial of animals beneath layers of sediment