-5) write the chemical name and chemical formule of the green plants for setting fractured bones in ringht posltion
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The event has been dubbed the "Christmas star," because some astronomers have theorized the “Star of Bethlehem” could have been a rare conjunction involving both Jupiter and Saturn. Those looking to see the star will want to look above the southwestern or western horizon just after sunset, experts said
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calsium sulphate (Caso4) is used as plaster in making buildings and in fractured bones .it is prepared by reacting normal marble or. limestone with sulphuric acid Caco3 + H2so4 =Caso4 + H2o + CO2.
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