What is the main source of energy for living things on earth? A. The sun. B. The moon. C. The stars. D. The wind. 相关知识点: 试题来源: 解析 A。地球上生物的主要能量来源是太阳。月亮、星星和风都不是主要能量来源。反馈 收藏
turnthingsaround,ifweallactnow.Whilegovernmentsneedtodotheirsharebyintroducingand obeyingstrictercarbonemissionlaws,individualscanalsohelp.Drivingless,conservingwater, andreducingelectricityusagearesomegreatwaystostart.Reduce,ReuseandRecyclewillhelp conservenaturalresourcesandenergy.Itwillalsosaveyouandyourcommunity.Besu...
All life needs sunlight to live on. But only plants can use sunlight directly. Plants are ‘factories’. They make food from sunlight water and things in the soil (土壤) and air. Plants feed all other living things. Animals can only use the sun’s energy after it has been changed into...
Do you think it's necessary for school to have a model wire? Integrate. Who can't be all work together in a way that makes something more effective. Enable. To make it possible for someone to do something. Or for something to happen. For gold. The reins of things that are subject a...
Energy-saving and emission reduction 气候变化是人类面临的全球性问题,二氧化碳排放温室气体猛增对生命系统形成威胁。世界各国以全球协约方式减排温室气体,中国提出“2030碳达峰”、“2060碳中和”目标,即“二氧化碳人为移除抵消人为排放”,承诺二...
We start with just three molecules water, methanol and ammonia. We apply energy to them, and we form thousands of other molecules.一开始只有3分子水、甲醇和氨。我们对它们施加能量，就形成了成千上万的其他分子。The experiment was a success. In the small chemical reactor, there are now simple ...
物 present us with opportunities赋予(人生)以意义 give meaning to your life /work赋予人性的一面 人性化 give a Human face toGive and take 舍与得 奉献(invest)与索取 (take)invest time/energy in helping others,take meani...
新视野大学英语(第三版)第二册读写教程、视听说教程全部答案+教案(Units1-7).pdf,New Horizon College English BOOK 2 (3rd Edition) Unit 1 Text A Ex .l Understanding the text 1、Be au se he is tired o f listening to his father and he is not interested in gram
Some parts of that system make things, like coins, bills or cards. Other parts move money between buyers, sellers, banks and others. Used cash, cards and equipment will be eventually disposed of (处理), as well. Each part of this system uses materials and energy. And all parts produce ...
You just need to understand what motivates you in life so that you canchannel your energy through the right platformand achieve greater success in life. 4. Power and Fame There is another group of people who are motivated by power and fame. Politicians are a great example here. ...