21 Jun, 2012 Who discovered 0. Niobium is a soft gray metal and a chemical element represented by the symbol Nb with the atomic number 41. The free metal does not occur in nature, but it can be found in certain minerals such as columbite and pyrochlore. The largest deposits of niobium containing minerals are found in Brazil and Canada and these two countries continue to produce the majority of the element for the world. Niobium is chemically similar to the element tantalum, which meant that its discovery was the subject of much debate.
Roses - anywhere from 5 petals to 110 petals depending on the variety. Chrysanthemums - same thing. Depends on type 20-30 up to 100 or so. Forms of mums: Incurved â ray florets tend to turn upward and inward. 1  Reflexed â ray florets turn outward and downward from the center of the flower.  Anemone-Centered â having a prominent center of disk florets which can be described as having a central âpincushionâ effect.
The red rose was the favorite flower of Venus, the Roman goddess of love. Red roses are considered the flower of love because the color red stands for strong romantic feelings. 189 million stems of roses are sold in the U.S. on Valentine's Day. California produces 60 percent of American roses, but the greater number sold on Valentine's Day in the U.S. are imported, mostly from South America. Approximately 110 million roses, mostly red, will be sold and delivered within the three-day Valentine's Day time period. Greeting Cards Approximately 145 million valentines are sent in the U.S. each year according to estimates by the U.S. Greeting Card Association.