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:
Now that we know what gold and gold alloys are, itâs time to talk about gold plated and gold filled jewelry. Gold Plated Jewelry: Gold plated jewelry is NOT gold jewelry. Gold plated jewelry is jewelry made of a base metal (e.g. copper) or silver that has a very thin layer of gold applied to the top.