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:
Not much will attack gold, but some chemicals can attack the silver and copper used to make 10K, 14K, 18K, 22K gold, so you can sometimes get permanent staining. Wear a neck chain and put the ring on it when you're doing lab work. The biggest danger is getting chemicals under the ring where they can go on chewing at your skin for some time before being noticed. 1  permalink. 2  embed. 3  save. 4  give gold.