In photosynthesis, what is the source of oxygen? A. water B. carbon dioxide C. sunlight D. chlorophyll 相关知识点: 试题来源: 解析 A。在光合作用中,氧气的来源是水(water)。二氧化碳(carbon dioxide)是光合作用的原料之一,但不是氧气的来源。太阳光(sunlight)是光合作用的能量来源。叶绿素(chlorophyll)...
There is no doubt that school bullying imposes adverse impacts on those involved, which is of great harm to adolescents both physically and mentally. So severe is the situation that some victims even choose to commit suicide to escape from t...
百度试题 结果1 题目What is oxygen vital for? A. Rocks B. Non-living things C. Life D. Machines 相关知识点: 试题来源: 解析 C。解析:文中提到 Oxygen is vital for life.(氧气对生命至关重要。)反馈 收藏
A. Silicon atoms. B. Carbon atoms. C. Oxygen atoms. D. Hydrogen atoms. 相关知识点: 试题来源: 解析 B。解析:文章中明确提到“Graphene is an extremely thin and strong material. It is made up of a single layer of carbon atoms arranged in a hexagonal lattice.”,石墨烯是由一层碳原子组成...
theCO2iscapturedandsequestered(封存),itiscalledbluehydrogen. Greenhydrogenisdifferent.Itisproducedthroughelectrolysis(电解),inwhichmachines splitwaterintohydrogenandoxygen,withnootherby-products.Historically,electrolysis requiredsomuchelectricitythatitmadelittlesensetoproducehydrogenthatway.Thesituationis changingfortworea...
Oxygen is a colorless, odorless, tasteless gaseous chemical element which appears in great abundance on Earth, trapped by the atmosphere. Many people are familiar with oxygen, because it is a vital component of the respiration process; without it, most organisms will die within minutes. A number...
Question: What happens to the oxygen that is produced as a result of photosynthesis? Answer and Explanation: Become a Study.com member to unlock this answer! Create your account View this answer See full answer below.Become a member and unlock all Study Answers Start today....
1.Whereisthistextprobablytakenfrom? A.Atextbook. B.Anexampaper C.Acourseplan. D.Anacademicarticle. 2.How manypartsisastudent?sfinalgrademade upof? A.Two. B.Three. C.Four. D.Five. 3.Whatwillhappenifyousubmitanessayone weekaftertheduedate? A.Youwillreceiveazero. B.Youwilllosealettergrade...
Known as the Great Oxygenation Event, Earth froze over as oxygen accumulated in our atmosphere, nearly driving all life extinct.
C. Three hydrogen atoms and one oxygen atom. D. One hydrogen atom and three oxygen atoms. 相关知识点: 试题来源: 解析 B。中文解析:文章中明确提到“Water is a compound made up of two hydrogen atoms and one oxygen atom.”,所以水是由两个氢原子和一个氧原子组成。