Respuesta :
The missing paragraph and questions are:
Ambient Air Pollution Pollutants are categorized into two types: primary and secondary. Primary pollutants are directly emitted from the source, and secondary pollutants form when primary pollutants chemically react in the atmosphere. O3 is a good example of a secondary pollutant because it is formed when volatile organic compounds and nitrogen oxides (NOx), precursors produced from motor vehicles and industrial sources, react in the presence of sunlight. Owing to the nature of its production, O3 has a diurnal profile with a rising in the morning after heavy traffic and a peak in the 10:00 a.m. to 6:00 p.m. period. In the evening, scavenging of O3 by nitric oxide (NO) titration in areas with heavy traffic reduces O3 to much lower levels, compared to daytime highs. High O3 levels may occur in downwind communities later in the afternoon and evening, stemming from airborne transport to areas without heavy traffic. O3 is a powerful oxidant and respiratory tract irritant in adults and children, causing a number of symptoms including shortness of breath, chest pain, etc. when inhaling deeply.
What are the two types of pollutants?
a) First and second
b) Main and secondary
c) Primary and secondary
It is a secondary pollutant that causes a number of symptoms such as shortness of breath, chest pain, etc. When inhaling deeply.
a) 3O
b)O3
c) Chemicals
The answers are:
c) Primary and secondary and b) O3
The name of the two types of pollutants is in the first line of the paragraph when it says, "Ambient Air Pollution Pollutants are categorized into two types: primary and secondary." The paragraph does not mention other names for the classification of pollutants such as first and second or main and secondary; therefore, the answer is primary and secondary pollutants.
The secondary pollutant that causes several symptoms is O3, also known as ozone. The text shows that O3 is a secondary pollutant when it says, "...secondary pollutants form when primary pollutants chemically react in the atmosphere. O3 is a good example of a secondary pollutant ..."
- 3O is not the correct formula, and it is not present in the paragraph.
- Chemicals are not the correct answer since the question is asking for a specific secondary pollutant. Besides, O3 is a chemical component that reacts with other chemicals resulting in secondary pollutants. That is why this option is incorrect. In conclusion, the correct answer is O3.
To sum up, after reading the text and looking for the evidence that shows the correct answers, the two types of pollutants are primary and secondary, and an example of a secondary one is O3.
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