UC知道帮帮忙了啊
来源：百度知道 编辑：UC知道 时间：2024/05/26 09:40:47
Leaves are nature’s food factories.Plants tske in water from underground through their roots.They take in a gas called carbon dioxide(CO2)from the air.Plants use sunlight to turnwater and CO2 into glucose.Glucose is a kind of sugar.Plants use glucose as food for energy to grow.The way plants turn water and CO2 into glucose is caller photosynthesis.Thatmeans”putting together with light”.A chemical called chlorophyll helpsmake photosynthesis happen.Chlorophyll is green.It gives plants their green color.
As summer ends and autumm comes,the days get shorter an shorter.This is how the trees”know”to begin getting ready for winter.
During winter,there is not enoughlight or water for photosynthesis.The trees will rest,and live on the food they have stored during the summer.They begin to close their food-making factories.The green chlorophyll disappears from the leaves.Then,we begin to see yellow and orange colors,A fer of these colors stay in the leaves all the time.We
Leaves
Leaves are nature’s food factories.Plants tske in water from underground through their roots.They take in a gas called carbon dioxide(CO2)from the air.Plants use sunlight to turnwater and CO2 into glucose.Glucose is a kind of sugar.Plants use glucose as food for energy to grow.The way plants turn water and CO2 into glucose is caller photosynthesis.Thatmeans”putting together with light”.A chemical called chlorophyll helpsmake photosynthesis happen.Chlorophyll is green.It gives plants their green color.
As summer ends and autumm comes,the days get shorter an shorter.This is how the trees”know”to begin getting ready for winter.
During winter,there is not enoughlight or water for photosynthesis.The trees will rest,and live on the food they have stored during the summer.They begin to close their food-making factories.The green chlorophyll disappears from the leaves.Then,we begin to see yellow and orange colors,A fer of these colors stay in the leaves all the time