The nitrogen compounds through which excess nitrogen is eliminated from organisms are called nitrogenous wastes (/naÉªËtrÉdÊáµ»nÉs/) or nitrogen wastes. They are ammonia, urea, uric acid, and creatinine. All of these substances are produced from protein metabolism.
A diya, divaa, deepa, deepam, or deepak is an oil lamp, usually made from clay, with a cotton wick dipped in ghee or vegetable oils.Clay diyas are often used temporarily as lighting for special occasions, while diyas made of brass are permanent fixtures in homes and temples.iyas are native to India, and are often used in Hindu, Sikh, Jain and Zoroastrian religious festivals such as Diwali or the Kushti ceremony. A similar lamp called a butter lamp is used in Tibetan Buddhist offerings as well.
Diwali, the Hindu festival of lights, is the most popular of all the festivals from South Asia. It is also an occasion for celebration by Jains and Sikhs.The festival of Diwali extends over five days. Because of the lights, fireworks and sweets involved, it's a great favourite with children.iwali is known as the 'festival of lights' because houses, shops and public places are decorated with small earthenware oil lamps called diyas. These lamps, which are traditionally fueled by mustard oil, are placed in rows in windows, doors and outside buildings to decorate them.