What are primary pollutants according to the lecturer?

Question

BlackTom AI · Accepted Answer

Question restatement: What are primary pollutants according to the lecturer?

Option a: 'The first pollutants that are emitted into the air' — This phrasing suggests a temporal sequence rather than a chemical or source-based definition. Primary pollutants are not defined by being the 'first' emitted; timing alone does not capture their characteristic of being released directly into the atmosphere in a form that can cause harm.

Option b: 'Pollutants that are released straight into the atmosphere' — This captures the essential idea of primary pollutants: substances emitted directly from a source into the air in a form that can contribute to air quality issues. The emphasis is on direct emission without undergoing chemical transformation at the emission site, which aligns with the conventional definition.

Option c: 'The main pollutants in the air' — This is a vague statement. 'Main' or 'primary' could be interpreted as most abundant or most important, but primary pollutants are not defined by prominence; they are defined by their direct emission from sources. This option conflates importance or prevalence with the emission character, which is misleading.

Summary of reasoning:
- The core concept of primary pollutants is direct emission into the atmosphere from a source, not altered at the point of release.
- The first option misleads by implying a temporal order rather than a mechanism of emission.
- The third option overgeneralizes and conflates 'primary' with being the main or most significant pollutants, which is not the defining criterion.
- Therefore, the statement that best matches the lecturer's definition emphasizes direct atmospheric release from sources without pre- or post-emission processing.

ME Mod4 Intake 2A - 14 Apr 2025 - 4 Jul 2025 Practice Listening Quiz 1

What are primary pollutants according to the lecturer?

查看解析

登录即可查看完整答案

类似问题

The lead aerosol crisis of the 20th century can best be described as an example of (one answer only):

The lead aerosol crisis of the 20th century can best be described as an example of (one answer only):

Air pollution is accurately described by which statement?

Question at position 30 What does not cause smog?NOxParticulatesO3CO2Clear my selection

An air quality monitor is situated in the neighborhoods near McDonald Steel in McDonald, OH and measures levels of PM10 and NO2. These levels would be what kind of variable?

Nitrogen dioxide from motor vehicle exhaust contributes to what problem(s) in the atmosphere? You can pick more than one.

What does the lecturer state about particle pollution in Australia?

更多留学生实用工具

考试浏览器助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单