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!
The yellow gold used in jewelry is made in the same way, and the difference is only in the mixture of the additional metals used. For example, white gold has more zinc, whereas yellow gold usually contains more nickel. Regardless of what metals are added to the gold alloy, its purity is measured in the same way.For example, if a gold ring is 18 karats, this means that out of a maximum of 24 parts, 18 parts are pure gold and the rest is something else.egardless of what metals are added to the gold alloy, its purity is measured in the same way. For example, if a gold ring is 18 karats, this means that out of a maximum of 24 parts, 18 parts are pure gold and the rest is something else.