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.
gold used in jewelry like wedding rings can come in many forms basic to understand the uses of gold in jewelry is karat karat with a k is the purity of gold carat with a c is a measure of weight use mostly in gem weight one carat is 1 5 gram karated gold used in engagement rings can be from 100 % gold to as low as 37 % gold gold s karat grade is used to express the proportion of gold in an alloy or the quality of a gold alloy