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:
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