The carbon cycle is an important part of the Earth's ecosystem. Which of the following is a major process in the carbon cycle that releases carbon dioxide into the atmosphere? A. Photosynthesis by plants B. Respiration by animals C. Formation of fossil fuels D. Precipitation 相关知识点: ...
In addition, it is taken in when they feed and given out when they die. Thus there is a continual process which is known as "the carbon cycle". Photosynthesis is the process by which plants, by taking in carbon dioxide from the air and by using energy from the Sun, make sugars and ...
The carbon cycle is a biogeochemical cycle that enables the Earth to sustain life. Why is the carbon cycle important for sustaining life? Biochemical and geophysical interactions between the atmosphere, hydrosphere lithosphere, and biosphere control the form, location, and availability of carbon to mai...
Carbon (C) is one of the most important elements in air pollution. All living systems on earth consist of molecular arrangements of the elements: carbon, oxygen, hydrogen, and most contain nitrogen. These four so-called biophile elements have an affinity for each other so as to form complex...
Planting more trees means cutting down and reducing the carbon footprint (碳足迹) and spreading of greenhouse gases. For example, the trees planted in China are playing an important role. A report published in Nature shows that CO2 absorption (吸收) in two new forest areas in China is more...
Which of the following is an important component of matter cycling in an ecosystem? A. Oxygen cycle B. Only carbon cycle C. Only nitrogen cycle D. Only phosphorus cycle 相关知识点: 试题来源: 解析 A。解析:在生态系统中,氧气循环是物质循环的一个重要组成部分,而不仅仅只有碳循环、氮循环或者磷...
B Recently, the term “carbon neutral (碳中和)" has been use d frequently at some important meetings in many countries. Many countries have put forwar d the goal of striving (奋斗目标) to be carbon neutral. Chin a is expecte d to be carbon neutral by 2060. So, as middle school stude...
Recently,the term "carbon neutral(碳中和)" has been used frequently at some important meetings in many countries.Many countries have put forward the goal of striving(奋斗目标) to be carbon neutral.China is expected to be carbon neutral by =2060.So,as middle school students,what can we do ...
A.Toappealtopeopletoreducecarbonlevels. B.Tostatetheearth?stemperaturehitsarecordhigh. C.Toinformreadersclimatechangeissevere. D.Toreportoceanlevelsarerisinghigher. ( )2.Whatmayleadtogreatchangestotheplanet?swatercycle? A.Theriseofglobaltemperatures. B.Thefastdevelopmentofindustry. 30分钟能力强化组合练...
is a minor constituent. But there is an enormous amount of this compound buried in the sedimentary rocks of Earth' s crust, enough so that, if it were all released, our atmosphere would be much more like those of our neighboring planets. How did carbon dioxide gas end up in the crust?