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.
Often people fall back into thinking that cardio is code for running. While running is a very efficient way to burn calories, there are others. Swimming, rowing, boxing, and dancing are all great workouts, too. A good, solid rowing workout can easily have you burning 800 to 1,000 calories in an hour's worth of work. Just 45 minutes in the pool will easily burn 800 excess calories just itching to be stored as fat. Boxing rings in at about 700 calories per hour, depending on your weight.