A. Carbon dioxide is firstly found in human history B. Carbon dioxide is an important factor in global warming. C. Carbon dioxide is found reaching a quite high level. D. Measurement of carbon dioxide is symbolic in human history.
Carbon dioxide capacity means how much carbon dioxide can be released by a country or the world under the limit which will do harm to the balance of environment and cause drastic consequence. The atmosphere is consist of 78% nitrogen, 21% oxygen and a little bit of carbon dioxide...
Plants absorb carbon dioxide. What is the significance of this for the ecosystem? A. reduce pollution B. increase oxygen C. help animals breathe D. balance the E. cosystem 相关知识点: 试题来源: 解析 D。植物吸收二氧化碳,对生态系统的意义是平衡生态系统。选项 A“reduce pollution”是减少污染;...
What is the chemical formula for carbon tetrafluoride? How many valence shell electrons does the element carbon have? What group does chlorine belong to? What is the oxidation number of carbon? What is the atomic number for carbon dioxide?
A. To make sugar. B. To carbonate soft drinks and make dry ice. C. To make coffee. D. To make bread. 相关知识点: 试题来源: 解析 B。中文解析:文中提到“Carbon dioxide is also used in the food and beverage industry. For example, it is used to carbonate soft drinks and to make ...
百度试题 结果1 题目What is the core for plants to use water A.Carbon dioxide.B.Chemical energy.C.Molecule.D.Proteins.相关知识点: 试题来源: 解析 D 细节题。植物利用水的关键是一种蛋白质。反馈 收藏
What is the term for the process by which plants absorb carbon dioxide and release oxygen? A. Photosynthesis B. Respiration C. Decomposition D. Circulation 相关知识点: 试题来源: 解析 A。光合作用是植物吸收二氧化碳并释放氧气的过程。B 选项呼吸作用是生物体吸收氧气并释放二氧化碳的过程;C 选项分解...
For plants to carry out photosynthesis, they need to absorb carbon dioxide. What is the role of carbon dioxide in photosynthesis? A. It provides energy B. It is a product C. It is a raw material D. It has no role 相关知识点: ...
Learn the definition of carbon and its function. Understand the importance of carbon, why organisms need carbon, and what it does for the body. Related to this Question What is the oxidation number of hydrogen? What is lead's oxidation number?
钱先生，68岁。脑血管意外一周转入本院，消瘦、嗜睡。营养指标检测发现：清蛋白 26g／L，转铁蛋白1.8g／L。病人无消化道出血和肠道感染，既往除高血压外无其他疾病史。(1).根据其检测结果，该病人的营养状况属于（ ）