photosynthesis

(chiming LED電子公司)---光合作用是指植物體利用光能，把根從土壤中吸收的水分和葉從空氣中吸收的二氧化碳，在葉片裡的葉綠體工廠合成醣類如葡萄糖、蔗糖和澱粉等，即所謂植物的食物，並釋放出氧氣

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