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.
Pure gold is very soft, So it can't be used for jewelry. So impurities are added to make it stronger. Most gold jewelry is 18 karat or less to make it so that it lasts longer, and doesn't wear away. Aisian jewellery is pure gold, 24 carat, 999.9 fine. Its heavier (although often made hollow) very,very soft, and a very yellow, in colour.