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 ...
aIt is also a major concern as an air pollutant because it contributes to the formation of photochemical smog, which can have significant impacts on human health 它也是主要关心作为空气污染物,因为它对光化学烟雾的形成贡献,可能有对人类健康的重大冲击[translate]...
In the United States, the only pollutant for which there is a national air quality standard is lead. A. Y B. N C. NG 如何将EXCEL生成题库手机刷题 > 下载刷刷题APP,拍照搜索答疑 > 手机使用 分享 反馈 收藏 举报 参考答案: C 复制 纠错...
ahaze is air pollution in which is mixed up with dust, smoke and other dry particles ,and it obscure the clarity of the sky and interacts with the natural environment. This kind of air pollutant come from a variety of natural and manmade sources. Natural sources can include windblown dust...
英语翻译解释雾霾Haze is air pollution in which is mixed up with dust, smoke and other dry particles ,and it obscure the clarity of the sky and interacts with the natural environment. 雾霾原因This kind of air pollutant come from a variety
Step-by-Step Solution:1. Identify the Question: The question asks for the greatest air pollutant these days among the given options: factories, motor vehicles, domestic appliances, and animals.2.
Which of the following pollutants, when replaced with natural alternatives, could improve human health? a. radon b. fungicides c. disinfectants Pollutants: Pollutants are substances that contaminate certain aspects of the environment, especiall...
These studies, by themselves, may not be adequate to make policy determinations as to which types of emissions are most harmful, and which emissions may pose little health threats. The consistency of findings, however, is quite surprising. It is doubtful that many air pollution health experts ...
Clinical application of a coordinated, multifaceted therapy for successful corneal perforation management in the context of dry eye disease is facilitated by this review.Among the most frequent ophthalmic surgeries globally is cataract surgery. Patients with cataracts often present with dry eye disease (...
In the United States,the only pollutant for which there is a national air quality standard is lead.线索词汇为lead,定位在以lead为小标题的段落,再专找出现有national air quality standard的地方,即末句:“1999年,本国有十个地区空气中铅的含量没有达到国家空气质量标准。”并未出现“铅是唯一有...