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:
Pure gold is very soft, So it can't be used for jewelry. So impurities are added to make it stronger. Most gold jewelry is 18 karat or less to make it so that it lasts longer, and doesn't wear away. Aisian jewellery is pure gold, 24 carat, 999.9 fine. Its heavier (although often made hollow) very,very soft, and a very yellow, in colour.