What Is Air Pollution?Air pollution is normally defined an air that contains one or more chemicals in high enough concentrations to harm humans,other animals,vegentation or materials.There are two major types of air pollutants.A primary air pollutant is a chemical added directely to the air ...
Q1: What are the primary sources of air pollution? A1: English: The primary sources of air pollution include vehicle emissions, industrial processes, power plants, and natural sources such as wil...
Text:Type and Sources of Air PollutantsWhat Is Air Pollution?Air pollution is normally defined an air that contains one or more chemicals in high enough concentrations to harm humans,other animals,vegentation or materials.There are two major types of air pollutants.A primary air pollutant is a ...
A [听力原文] 24-29 How much can you say about air pollutant At first let’s have a look at a useful definition of it. A pollutant is a compound added directly or indirectly by humans to the atmosphere, and in such quantities to adversely affect humans, animals, vegetations or materials...
Secondary pollutants:When pollutants in the air mix up in a chemical reaction, they form an even more dangerous chemical. Photochemical smog is an example of this and is a secondary pollutant. Why is air pollution such an important issue today?Click to find out ...
题目问:说话者认为将来什么可能是空气污染物文章的第一段指出“In the future even water vapor might be thought of as an air pollutant under certain conditions”,也就是说,水蒸气现在并不是大气污染物,将来可能成为污染物。其他几项均为干扰项,因为它们现在已经是污染物了,因此我们可以得出选项D为正确答案。
An air cleaner, also known as anair purifier, is an appliance that cleans the air by removing impurities. An air cleaner can clean the air in a single room, a whole house or an industrial workspace. Air cleaners are employed in situations where the air typically becomes unhealthy due to ...
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Secondary pollutant is ASO2 BCO CDDT DPANSubmit Given below are some differences between primary air pollutants and secondary air pollutants. Which one of the following is an incorrect difference ? A Primary air pollutantsSecondary sir pollutantsThese persist in the form in which they are added ...
What is a riparian habitat? What is an example of a biodegradable pollutant? What type of environmental pollution causes the most deaths globally? What constitutes air pollution? What does pollution do to the ozone layer? What is an ecological disruption?