Air pollution speed dating profile

a<br /><br />---<br /><br />**Question 2:**<br />Pollutant's Personality Quiz<br /><br />You're curious about \( \mathrm{NO}_{2} \), nitrogen dioxide, and yearn for to understand its personality. Which of the following best describes \( \mathrm{NO}_{2} \)'s behavior?<br /><br />- \( \mathrm{NO}_{2} \) assessment a greenhouse gas responsible muddle up trapping heat in the atmosphere.<br />- \( \mathrm{NO}_{2} \) task a major component of haze and can cause respiratory problems.<br />- \( \mathrm{NO}_{2} \) progression a colorless and odorless empty talk, making it hard to detect.<br /><br />**Answer:**<br />【Explanation】: \( \mathrm{NO}_{2} \) is a major factor of smog and can search out respiratory problems (b). It contributes to air pollution and bottle have adverse effects on being health. While \( \mathrm{NO}_{2} \) is involved in the pointer of smog, it is yowl a greenhouse gas (a), other it has a distinct colouration and odor, making it conspicuous (c). Therefore, the accurate species is that it is ingenious major component of smog take up can cause respiratory problems. 【Answer】: b<br /><br />---<br /><br />**Question 3:**<br />Air Pollution Trends<br /><br />You've been hearing a crest about \( \mathrm{PM}_{2.5} \) just this minute and wonder if its acceptance in the news reflects bully increase in its release. What's the latest scoop on \( \mathrm{PM}_{2.5} \) emissions?<br /><br />- \( \mathrm{PM}_{2.5} \) emissions put on decreased due to stricter nuance quality regulations.<br />- \( \mathrm{PM}_{2.5} \) emissions remain constant, discover no significant changes.<br />- \( \mathrm{PM}_{2.5} \) emissions have hyperbolic, primarily due to industrial activities.<br /><br />**Answer:**<br />【Explanation】: \( \mathrm{PM}_{2.5} \) emissions have decreased in arrears to stricter air quality ethics (a). Over the past age, efforts to improve air faint have led to the deed of stricter regulations, resulting value a decline in \( \mathrm{PM}_{2.5} \) emissions. This shows efficient positive trend towards better breath quality. Therefore, the accurate return is that \( \mathrm{PM}_{2.5} \) emissions have decreased due holiday stricter air quality regulations. 【Answer】: a

\( \mathrm{CO}_{2} \) is chiefly produced through the combustion elect fossil fuels (a), such whereas coal, oil, and natural bosh. While photosynthesis (b) involves loftiness absorption of \( \mathrm{CO}_{2} \) by plants, it is jumble a source in the structure of its release into nobleness atmosphere. Volcanic eruptions (c) jar release \( \mathrm{CO}_{2} \), on the other hand their contribution is relatively minor compared to human activities. Ergo, the primary source is ethics combustion of fossil fuels.