[amp_mcq option1=”10-20% of air pollution” option2=”40-50% of air pollution” option3=”50-60 % of air pollution” option4=”5-10 % of air pollution” correct=”option2″]<\/p>\n
The correct answer is: B. 40-50% of air pollution<\/strong>.<\/p>\n Mobile combustion is the burning of fuel in vehicles, such as cars, trucks, and buses. It is a major source of air pollution, accounting for 40-50% of air pollution in the United States. Mobile combustion emits a variety of pollutants, including particulate matter, nitrogen oxides, and volatile organic compounds. These pollutants can cause a variety of health problems, including respiratory problems, heart disease, and cancer.<\/p>\n Option A is incorrect because mobile combustion accounts for 40-50% of air pollution, not 10-20%.<\/p>\n Option C is incorrect because mobile combustion accounts for 40-50% of air pollution, not 50-60%.<\/p>\n Option D is incorrect because mobile combustion accounts for 40-50% of air pollution, not 5-10%.<\/p>\n","protected":false},"excerpt":{"rendered":" [amp_mcq option1=”10-20% of air pollution” option2=”40-50% of air pollution” option3=”50-60 % of air pollution” option4=”5-10 % of air pollution” correct=”option2″]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[34],"tags":[],"class_list":["post-45206","post","type-post","status-publish","format-standard","hentry","category-environmental-science","no-featured-image-padding"],"yoast_head":"\n