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 wildfires and volcanic eruptions. Major pollutants include carbon monoxide, sulfur dioxide, nitrogen oxides, and...
Step 1: Define Primary PollutantsPrimary pollutants are substances that are directly emitted into the atmosphere from various sources. They are not formed by any chemical reactions in the atmosphere but are released as a result of human activities or natural processes. Step 2: Provide Examples of ...
题目According to the speaker, what is the feature of air pollutants A. Its contents often remain stable.B. Its definition will change over time.C. Air pollutants are natural.D. Air pollutants are man-mad 相关知识点: 试题来源: 解析 B [解析] 本题为细节题,考查考生抓住文章中所谈到的重要细...
题目What may be influenced by air pollutants A. Humans and animals.B. The global climate.C. Vegetations and plants.D. Mineral materials. 相关知识点: 试题来源: 解析 A,C [解析] 本题为篇章应用题的要点多选题,考生必须具备辨别什么是文中的主要观点,什么是次要观点,什么是事实和细节的能力。题目问...
【答案】：AC 本题为细节题，考生必须具备辨别什么是文中的主要观点，什么是次要观点，什么是事实和细节的能力。题目问：什么会受到空气污染物的影响?综合全文，受到空气污染物直接或间接影响的是人、动物、植物和原材料，因此选项A、C为正确答案，而选项B不是本文讨论的问题，选项D是矿物质，也与原文...
1 英语翻译 Text:Type and Sources of Air Pollutants 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 pol...
Ultrafine particles (UFPs) belong to a class of primary air pollutants called particulate matter (PM).Other types ofPM include coarse particulate matter (PM10) and fine particulate matter (PM2.5).Witha diameterof 0.1 micronorless,UFPsare the smallestknown particles of PM.To put ...
Step 4: Summarize the ClassificationIn summary, pollutants are contaminants that exceed permissible limits and can be classified into primary and secondary pollutants based on their origin and formation process. | ShareSaveUpdated on:18/9/2024
A. Sometimes natural air pollutants can purify air.B. Natural air pollutants are harmful to people.C. There are some chemical reactions in the air.D. Air pollutants move from air to water or soil. 相关知识点: 试题来源: 解析 A [解析] 本题为语用理解题中的推论题。题目问:根据这一段所...
Primary pollutantsare those gases or particles that are pumped into the air to make it unclean. They include carbon monoxide from automobile (cars) exhausts and sulfur dioxide from the combustion of coal. Secondary pollutants:When pollutants in the air mix up in a chemical reaction, they form ...