A. Oxygen. B. Hydrogen. C. Sulfur dioxide. D. Helium. 相关知识点: 试题来源: 解析 C。解析:二氧化硫是空气主要污染物之一,它会导致酸雨等环境问题。A选项氧气是空气的重要组成部分且对生物有益。B选项氢气不是空气污染物。D选项氦气是稀有气体,不是空气污染物。反馈 收藏 ...
The most abundant hydrocarbon pollutant is View Solution Doubtnut is No.1 Study App and Learning App with Instant Video Solutions for NCERT Class 6, Class 7, Class 8, Class 9, Class 10, Class 11 and Class 12, IIT JEE prep, NEET preparation and CBSE, UP Board, Bihar Board, Rajasthan Bo...
aA useful definition of an air pollutant is a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetation, or materials adversely. 空气污染物的一个有用的定义是人直接地或间接地增加的化合物到大气在这样数量至于影响人、动物、植被或者...
Economist: The most economically efficient way to reduce emissions of air pollutants is to tax them in proportion to the damage they are likely to cause. But in Country Y, many serious pollutants are untaxed and unregulated, and policy makers strongly oppose new taxes. Therefore, the best way...
A useful definition of an air pollutant is a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetation, or materials adversely. 子句类型: 简单句 连接词: 3. 句子成分 简单句 A useful [定语] definition [主语] of an air...
【多选题】 Which of the following are air pollutants?( ) A. SO2 B. NOx C. Fly ash D. CO2 如何将EXCEL生成题库手机刷题 如何制作自己的在线小题库 > 手机使用 分享 反馈 收藏 举报 参考答案: A B C 复制 纠错 举一反三 下列被誉为“地球之肾”的是()。 A. 森林 B. 湿地 ...
atomic number 8, O, oxygen - a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crust atomic number 54, Xe, xenon - a colorless odorless inert gase...
Forestry social science is failing the needs of the people who need it most Rich nations’ fixation on forests as climate offsets has resulted in the needs of those who live in or make a living from these resources being ignored. A broader view and more collaboration between disciplines is...
The EPA monitors pollutant levels daily. When they become excessive, an air quality alert day is issued. An Air Quality Alert Day simply means the air may be unhealthy to breathe. We start at code orange for high levels of ground-level ozone. if you have respiratory concerns, limit your...
Our focus is on responses over land, as aerosols over ocean will have little health impact on people. We also perform an additional analysis centering on the eastern parts of China. This region includes the North China Plain, which is the most polluted district in China and has been studied...