[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. ...
What are chemicals typically found in air pollution? What type of air pollution damages the ozone layer? What is science? What is environmental biophysics? What is the EPA standard for particulate matter? What is natural science? What pollutant does not destroy stratospheric ozone?
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。
What pollutant does not destroy stratospheric ozone? What is ozone depletion? What is an inert atmosphere? Which aerosol depletes the ozone layer? What is another name for the ozone layer? What is the stratospheric ozone commonly called?
What type of air purifier do I need, and what will it remove? The type of air purifier you choose matters, as some are engineered to perform specific tasks. If there is a specific type of pollutant that you are looking to remove, then it’s vital to choose the right...
air pollution is defined as the presence of substances in the atmosphere that have a harmful effect on human health as well as the health of other living organisms. water pollution is defined as the contamination of bodies of water usually as a result of human activities. explore more about ...
Further, some reports suggest that tobacco smoke causes ten times more air pollution than diesel car exhaust, making it one of the most severe indoor air pollution sources. Cooking stoves Another common indoor air pollutant is particulate matter (PM) from cooking stoves. In developing countries, ...
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 ...
Regular monitoring of indoor air pollutants can help identify problems and guide the implementation of solutions. This can be done using IAQ sensors and testing for specific contaminants. Source Control Eliminating or reducing the sources of pollutants is the most effective way to improve IAQ. This ...
Viscose fabric is durable and soft to the touch, and it's one of the world's most beloved textiles. But what exactly is viscose fabric, and how is it produced and used? What Is Viscose? Viscose, which is also commonly known as rayon when it is made into a fabric, is a type of...