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.
Gold and Silver Jewelry not only adds beauty to a person who wears it, wearing gold and silver on the body has also numerous health benefits. I am presenting you the facts you may love. Go for them!
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.