Interest Rates as of 4/19/2017. A 30-year loan in which the interest rate does not change during the entire term of the loan. $. (2) This is an adjustable rate loan so monthly payments and interest paid will change.
Air Pollution Sources. Air pollution comes from many different sources. Natural processes that affect air quality include volcanoes, which produce sulfur, chlorine, and ash particulates. Wildfires produce smoke and carbon monoxide. Cattle and other animals emit methane as part of their digestive process. Even pine trees emit volatile organic compounds (VOCs).
Photo: Air pollution is obvious when it pours from a smokestack (chimney), but it's not always so easy to spot. This smoke comes from a coal-fired power plant and its pollutants include sulfur dioxide and the greenhouse gas carbon dioxide.hen we think of pollution, we tend to think it's a problem that humans cause through ignorance or stupidityâand that's certainly true, some of the time. However, it's important to remember that some kinds of air pollution are produced naturally.