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.
Benefits of Wearing Gold: 1. Gold has healing property: Pure gold helps in healing the wound and controlling infections in the body. It is said that if a person places a piece of 24 karat gold (pure gold) on an infected area in the body or on a sore wound, the gold helps in reducing the infection.
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.