Question: -  Water seeps into the remains - Minerals dissolved in the water form crystals - Crystalized minerals cause the remains to harden - The minerals form a fossil.  What might be the first step of the process?
Answer: An organism dies

Question: -  The glucose and oxygen create carbon dioxide - The cells release energy - The cells don't have enough oxygen to repeat this - The cells obtain more oxygen from the air - The cells repeat this process.  What might be the first step of the process?
Answer: Cells obtain glucose and oxygen

Question: -  The plants and floor absorb the the sunlight - The absorbed sunlight is converted to heat - The heat cannot escape the glass - The heat is trapped in the greenhouse - The hot air rises - The colder air at the top is pushed to the bottom - The colder air is then warmed by the floor and the plants.  What might be the first step of the process?
Answer:
Sunlight passes through the glass into the greenhouse