Root plant to fuel the process. In return, the plant takes nitrogen compounds produced from ammonia by the bacteria. The term root crops refers to any edible underground plant structure, but many root crops are actually stems, such as potato tubers. Edible roots include cassava, sweet potato, beet, carrot, rutabaga, turnip, parsnip, radish, yam and horseradish. Spices obtained from roots include sassafras, angelica, sarsaparilla and licorice. Sugar beet is an important source of sugar. Yam roots are a source of estrogen compounds used in birth control pills. The fish poison and insecticide rotenone is obtained from roots of "Lonchocarpus" spp. Important
Whisky tasting Whisky tasting Whisky tasting is the analysis of whisky through visual examination, taste and aroma. Whisky tastings are often conducted in groups of people, either for reference purposes or as a social activity. Glass selection is important when tasting whisky seriously. The least appropriate is the traditional tumbler due to its large mouth, allowing the dissipation of the fumes and the grip which encourages unwanted warming of the liquid. The generally accepted industry standard for whisky tasting glasses is tulip-shaped with a stem, such as a sherry glass or copita. Another popular glass is the Glencairn whisky glass. Other specifically