What do plants give off that is good for the air? A. dirty water B. clean water C. oxygen D. carbon dioxide 相关知识点: 试题来源: 解析 C。植物能释放氧气,使空气清新。A 选项脏水和 B 选项干净的水不是植物释放对空气有益的物质。D 选项二氧化碳不是对空气有益的物质。反馈 收藏 ...
The microorganisms also need water to live and multiply. Through the respiration process, the microorganisms give off carbon dioxide and heat. Temperatures within a compost pile can rise as high as100 to 150 degrees Fahrenheit(38 to 66 degrees Celsius). If you manage your compost pile by turnin...
小题1:从文章的第一句话Plants and animals usually do not live apart, as in many ways they are important to each other. 可知答案是They are important to each other. / They depend on each other. 小题2:从第二段的句子:animals give off carbon dioxide gas when they breathe. When plants make...
Nature shows that CO2 absorption(吸收) in two new forest areas in China is more than we thought.The two areas are located in China's southwestern and northeastern provinces.They make up over 35 percent of China's carbon sinks(碳汇).The main natural carbon sinks are trees...
What is the significance of secondary growth in plants? How do plants detect light? How does magnetism affect plant growth? How does transpiration work in a plant? How do plants get their carbon? How does the Washington hawthorn root system grow straight down?
小题1:从文章的第一句话Plants and animals usually do not live apart, as in many ways they are important to each other. 可知答案是They are important to each other. / They depend on each other. 小题2:从第二段的句子:animals give off carbon dioxide gas when they breathe. When plants make...
Humans, are you still stubborn? They keep talking about low-carbon environmental protection, but their actions are just the opposite. Hey! Protect the earth! Do you really want to bring the end of the world? 英语作文:爱护我们的地球 8 ...
Plants convert carbon dioxide into sugar and oxygen in the presence of sunlight. Plants store their sugar in the form of starch, which is used for growth and maintenance. Another essential factor necessary for plants to grow is soil. Air, water, sunlight, soil and warmth are the five things...
They give off oxygen which we must breathe to live. They also take in the carbon dioxide which we breathe out. Without plants, life will be hard for us. They need water, sunlight, air and soil to grow. We can water them, put them in the sunlight and keep them in the air to help...
is an element in the periodic table with the short form of Si. It has similar chemical characteristics to carbon and is absorbed by plants. Gardeners tend to use the term silicon in the same way as we useiron, potassium, nitrogenetc. These are chemical elements andnutrients that plants use...