Key Concepts: 1  Legumes (family Fabales) develop root nodules that harbour Rhizobium bacteria (rhizobia). 2  Endosymbiotic bacteria (bacteroids) convert nitrogen to ammonia (biological nitrogen fixation). 3  Legume crops restore fertility to agricultural soils by capturing nitrogen from the atmosphere.
6.Gold gives extra sheen to the body: A person wearing a moderate amount of gold in the form of simple jewelry looks gorgeous. The color and soft shine of the gold is enticing. Gold has the malleability that helps to make beautiful jewelry, wearing of which gives a stunning appearance to the person wearing it. 7. Lowers arthritis symptoms:
Uses of Gold. 1  Some investment and collectors coins are still made from gold. 2  Gold is used in all different types of jewelry. 3  Some gold salts are used in medicine as they have anti-inflammatory properties. 4  In modern times, injectable gold has been proven to help to reduce the pain and swelling of rheumatoid arthritis and tuberculosis. 5  Colloidal ... Gold use to be used to measure how much currency was worth until the world moved to finite money. 2  Gold is used in all different types of jewelry. 3  The higher the content of gold in a piece, the higher the caret rating. 4  Pure gold is not used as jewelry because it is too soft and would be damaged and misshapen too easily.