我好似寫左好多無謂野, 大包圍
Formation of fossil fuel
Burn fossil fuel in power station -> CO2
Plant absorb CO2 for photosynthesis
Carbon fixation 將CO2變成organic food
果D plant 可能係in farmland, e.g. potato
vegetative propagation 將organic food 轉成starch store
sharon 食左potato, amylase 將starch digest 變glucose
absorbed in small intestine 入blood
body cells pick up glucose from blood
Respiration breakdown glucose to form CO2
CO2 transport in blood to lung
最後breathe out CO2