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:
If you are allergic to nickel, one of the things you can do is buy gold jewelry that is of a higher karat grade. Most people with such an allergy cannot wear 10k gold, so if you are in the same situation, you can opt for 14k or 18k gold. Try higher karats until you find the type of gold you can tolerate.erhaps the best option you have if you have an allergy to nickel is to wear jewelry made of hypoallergenic materials, i.e. nickel-free metals and alloys that do not cause skin irritation or other adverse effects.