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PM2.5 is the leading global environmental determinant of longevity. It is a key pollutant of concern of health. PM 2.5 has been mapped across China, Europe, and North America. Using satellite data, ground-based monitoring and an innovative computer modeling system, researchers found mostly slight change in PM 2.5- with one exception. (2-) During the pandemic, among the images of overflowing ICUs and empty grocery store shelves, there were some photographic bright spots: before and after pictures accompanied articles proclaiming air quality improved because people were staying home. (3-) The visuals were striking - both on the ground, where blue skies shone over LA highway, and from space - data from NASA satellite made clear atmospheric reduction in nitrogen dioxide. (1-) According to the article "PM₂.5" is: - A. A pollutant which affects the human body. B. Determinant of longevity. C. An innovative computer modeling system. D. Satellite data. (2-) According to paragraph (2), the images of the overflowing ICUs and empty grocery store shelves suggest that if people staying home, the pollutants in the air would be: A. Inased. B. Decreased C. Improved. D. Worst. (3-) It can be concluded from paragraph (3) that the reduction in the nitrogen dioxide: A. Affects the air quality. B. Affects PM₂5- C. Is affected by people staying home. D. All the above options.

PM2.5 is the leading global environmental determinant of longevity. It is a key pollutant of concern of health. PM 2.5 has been mapped across China, Europe, and North America. Using satellite data, ground-based monitoring and an innovative computer modeling system, researchers found mostly slight change in PM 2.5- with one exception. (2-) During the pandemic, among the images of overflowing ICUs and empty grocery store shelves, there were some photographic bright spots: before and after pictures accompanied articles proclaiming air quality improved because people were staying home. (3-) The visuals were striking - both on the ground, where blue skies shone over LA highway, and from space - data from NASA satellite made clear atmospheric reduction in nitrogen dioxide. (1-) According to the article "PM₂.5" is: - A. A pollutant which affects the human body. B. Determinant of longevity. C. An innovative computer modeling system. D. Satellite data. (2-) According to paragraph (2), the images of the overflowing ICUs and empty grocery store shelves suggest that if people staying home, the pollutants in the air would be: A. Inased. B. Decreased C. Improved. D. Worst. (3-) It can be concluded from paragraph (3) that the reduction in the nitrogen dioxide: A. Affects the air quality. B. Affects PM₂5- C. Is affected by people staying home. D. All the above options.

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Read the article below and answer the questions after. PM2.5 is the leading global environmental determinant of longevity. It is a key pollutant of concern of health. PM 2.5 has been mapped across China, Europe, and North America. Using satellite data, ground-based monitoring and an innovative computer modeling system, researchers found mostly slight change in PM 2.5- with one exception. (2-) During the pandemic, among the images of overflowing ICUs and empty grocery store shelves, there were some photographic bright spots: before and after pictures accompanied articles proclaiming air quality improved because people were staying home. (3-) The visuals were striking - both on the ground, where blue skies shone over LA highway, and from space - data from NASA satellite made clear atmospheric reduction in nitrogen dioxide. (1-) According to the article "PM2.5" is: - A. A pollutant which affects the human body. B. Determinant of longevity. C. An innovative computer modeling system. D. Satellite data. (2-) According to paragraph (2), the images of the overflowing ICUs and empty grocery store shelves suggest that if people staying home, the pollutants in the air would be: A. Incased. B. Decreased C. improved. D. Worst. (3-) It can be concluded from paragraph (3) that the reduction in the nitrogen dioxide: A. Affects the air quality. B. Affects PM2.5- C. Is affected by people staying home. D. All the above options.
Transcribed Image Text:Read the article below and answer the questions after. PM2.5 is the leading global environmental determinant of longevity. It is a key pollutant of concern of health. PM 2.5 has been mapped across China, Europe, and North America. Using satellite data, ground-based monitoring and an innovative computer modeling system, researchers found mostly slight change in PM 2.5- with one exception. (2-) During the pandemic, among the images of overflowing ICUs and empty grocery store shelves, there were some photographic bright spots: before and after pictures accompanied articles proclaiming air quality improved because people were staying home. (3-) The visuals were striking - both on the ground, where blue skies shone over LA highway, and from space - data from NASA satellite made clear atmospheric reduction in nitrogen dioxide. (1-) According to the article "PM2.5" is: - A. A pollutant which affects the human body. B. Determinant of longevity. C. An innovative computer modeling system. D. Satellite data. (2-) According to paragraph (2), the images of the overflowing ICUs and empty grocery store shelves suggest that if people staying home, the pollutants in the air would be: A. Incased. B. Decreased C. improved. D. Worst. (3-) It can be concluded from paragraph (3) that the reduction in the nitrogen dioxide: A. Affects the air quality. B. Affects PM2.5- C. Is affected by people staying home. D. All the above options.
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