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.
To have gold in your possession itself is a satisfying feeling. It increases a person's self-worth. The person wearing gold displays increased self-confidence. It is pleasureful experience starting from buying a jewelry to wearing a jewelry till seeing it inside a decorative box. Gold has a special quality to make you feel happy and satisfied.
Gold is used for rings, watches, necklaces. Its main use is mostly jewelry, but gold leaf is used to decorate some foods, and gold also is used in a lot of high end electronicâ¦s because it is a good conductor. Gold is useful in making ornaments, decorative linings and in electrical contacts for better conductivity.