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.
Calories burned: breaststroke burns fewer calories than the other strokes - 60 calories per 10 minutes-but it's a long-distance swimming stroke that really tones up the heart and lungs. How to do it properly: Never warm up with breaststroke, says Price.