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 ...
this will limit the growth rate for the plant. In nature, the nitrogen, phosphorous and potassium often come from the decay of plants that have died. In the case of nitrogen, the recycling ofnitrogenfrom dead to living plants is often theonlysource of nitrogen in the soil. ...
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...
Sunlight and chlorophyll work together to turn water and carbon dioxide into a kind of sugar. This sugar is the food (养料) that provides plants 5 energy. When they make food, trees give off a gas called oxygen. Animals need oxygen to live. Photosynthesis doesn't just help plants stay ...
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...
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...
Leaves need sunlight, too. Sunlight and chlorophyll work together to turn water and carbon dioxide into a kind of sugar. This sugar is the food that provides plants energy. When they make food, trees give off a gas called oxygen. Animals need oxygen to live....
To make food, plants need sunlight, CO, and H2O. They use the energy from the sun to turn all of those things into O, and sugars.PHOTOSYNTHESIS Sunlight Oxygen (O2)Carbon Dioxide (CO,)Sugars Water (H,O)What do we not really know about plants?Fighting Plants fight against each other ...
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...
Of course, plants also suck in carbon dioxide from the air and push out oxygen in the amazing process called photosynthesis, but this is probably more like breathing—so we’re not breathing plant poo. They also give off extra water through their leaves, but that’s not quite right either...