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.
Platinum is a silver metal commonly used to make jewelry, which is a good option for a 20th anniversary gift. Platinum rings are available for both men and women. Platinum is also used in necklaces, bracelets, earrings and cufflinks. For couples who cannot afford to buy jewelry, there are still ways to incorporate platinum into the gift.