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!
Buying Gold Jewelry. Gold is available in a number of colors and carats. Pure gold is not suitable for use in jewelry, it is simply too soft to safely hold your precious stones. The carat rating of gold refers to its purity. The higher the carat rating the more pure the gold is. The other metals are added to improve strength and luster of the gold.