In four years there were 600 commercial stations around the country. To keep up with the cost of improving equipment and paying for performers, stations turned to advertisers. In August 1922, the first radio ad, for a real estate developer, was aired in New York City. Networks of local stations developed to share programming and became big business. In 1926, RCA (Radio Corporation of America) formed the first national network, called NBC (National Broadcasting Company).
There are two types of dietary fiberâsoluble and insoluble. Soluble fiber dissolves in water and is found in a variety of fruits, vegetables, legumes, and grains. It cuts cholesterol, adds to your feeling of fullness, and slows the release of sugars from food into the blood. These actions reduce your risk for health problems including heart disease, obesity, and diabetes.
Vegetables come from many different parts of the plant, including the leaves, roots, tubers, flowers, stems, seeds and shoots. Legumes are the seeds of the plant and are eaten in their immature form as green peas and beans, and the mature form as dried peas, beans, lentils and chickpeas. Vegetables can be broken up into different groups, with each group providing their own unique nutrients. The main sub-groups for vegetables are: Dark green or cruciferous/brassica. 1  Broccoli, brussels sprouts, bok choy, cabbages, cauliflower, kale. 2  Lettuce, silverbeet, spinach, snow peas.