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.
Platinum is a silver metal commonly used to make jewelry, which is a good option for a 20th anniversary gift. Platinum rings are available for both men and women. Platinum is also used in necklaces, bracelets, earrings and cufflinks. For couples who cannot afford to buy jewelry, there are still ways to incorporate platinum into the gift.