According to Harvard Medical School, you will burn about 240 to 356 calories per hour doing water aerobics, which is lower than the 420- to 622-calorie expenditure from participating in one hour of step aerobics at a low intensity.
The wrong meaning. If you use a .biz domain name, you are telling the world that your site is a business website. That may be fine if you are a business, but often web visitors mistrust businesses. You are also indicating that you are a small business.
However, it doesn't have any technical differences over a .ORG, .BIZ, .INFO, or any other generic top-level domain. Note: COM is also an acronym for Component Object Model, a binary-based interface for software components, but it has nothing at all to do with the .COM TLD as described here.