Why do the leaves on trees have different colors? What makes them change their colors?Leaves use sunlight, water and air to make food for the trees. This way of making food is called photosynthesis(光合作用). Photo
Trees get less (较少的) sunlight, so photosynthesis slows down. Over time, leaves stop making the green things. The hidden (隐藏的) orange, yellow, and brown colors grow when that happens.When it gets cold and ice comes at night, the leaves fall (叶子落下). They do this to keep the...
You’ve probably also noticed that the leaves of different kinds of trees change different colors. The leaves of some trees turn yellow or orange, while the leaves of other trees turn bright red or purple. The different colors are caused by the different chemical reactions that are happening ...
at all the beautiful colors of the trees.As the leaves change color,they also f(7) allto the ground and make the yards messy.People have to rake(用耙子耙)their yards to keep them c(8) lean.They will rake these leaves into piles(堆)and kids can then j(9)...
It is days like these that remind me that while seasons weather and nature's colors may change it is all beautiful and it is all joyful. And I am changing too. My thick wavy hair is now pretty thin on top. Its dark brown color is now getting some gray sprinkled(散落)in it. ...
The trees their leaves change colors with the lucky Borealis Forest(寒带森林)in America, Asia and Europe.have the shortest growing season of forests, borealis forests in three types.have the shortest growing season of forests, borealis forests in Russia, Europe.Tropical Rainforest(热带雨林)is ...
31.在秋季,树上的叶于会变色并掉到地上.___ ___, the leaves on the trees change their colors and fall to the ground. 相关知识点: 试题来源: 解析 Inautumn【答案】In autumn【核心短语/词汇】in autumn:在秋天【解析】根据句意可知,此处要表达“在秋天”这一含义,in autumn意为“在秋天”,位于句...
(catch) sunlight to change water and carbon dioxide(二氧化碳)into glucose.There is so much chlorophyll (7) thatit covers up all the other colors in the leaves. As summer ends and autumn comes,the days get shorter and shorter.Leaves get less sunlight,(8)...
But do you know that some frogs (蛙) live in the trees too? The tree fr og is hard to find. It can change colors. On green leaves it stays green. On a brown branch (树枝), it turns brown. Some tree frogs can change from green to gold (金黄色) or blue. Tree frogs have legs...
Why are leaves on trees different colors? What makes them change color? food Leaves make food for the tree from 1 , water, and air. Green stuff in the leaves helps them make food. It also makes the leaves green. 如何将EXCEL生成题库手机刷题 > 下载刷刷题APP,拍照搜索答疑 > 手机使用 ...