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.
Buying Gold Jewelry. Gold is available in a number of colors and carats. Pure gold is not suitable for use in jewelry, it is simply too soft to safely hold your precious stones. The carat rating of gold refers to its purity. The higher the carat rating the more pure the gold is. The other metals are added to improve strength and luster of the gold.