Microbial decomposition of organic materials in solid waste into useful soil additives and fertilizer; often, extra organic material in the form of sewer sludge, animal manure, leaves, and grass clippings are added to solid waste to speed the process and make the product more useful.
Swimming (leisurely pace) If you weigh 150 lbs, you can burn approximately 215 calories in 30 minutes. If you weigh 200 lbs, you can burn approximately 285 calories in 30 minutes. If you weigh 250 lbs, you can burn approximately 360 calories in 30 minutes.
How many calories you burn depends on a number of things. The first two are how far you will swim and how fast will you be swimming. Let's use the distance of one mile (1,760 yards). We will look at two different swimming speeds in order to judge the difference in calories burned. The first speed will be 20 yards per minute.