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:
White gold (and yellow gold) is measured in karats. There are 24 karats in 100% pure gold. This is too soft for jewelry making. There is about 58% pure gold by weight in 14kt gold. The balance of metal is the alloy mix chosen to be combined with the pure gold.ellow gold purity is also measured in karats. Yellow gold is the only type of gold that can be used in jewelry making as 24-karats. Since white gold and rose gold require other metals in order to achieve their unique colors, there cannot be 24kt white gold or 24kt rose gold.