Potassium metal is far too reactive to be found uncombined in nature. The element is quite abundant and makes up about 1.5 % by weight of the earth's crust. Potassium is found extensively as potash (KOH).
The name Guyana is derived from Guiana, the original name for the region that formerly included Guyana (British Guiana), Suriname (Dutch Guiana), French Guiana, and parts of Colombia, Venezuela and Brazil.ith 215,000 square kilometres (83,000 sq mi), Guyana is the third-smallest country on mainland South America after Uruguay and Suriname. The region known as Guiana or Guyana comprised the large shield landmass north of the Amazon River and east of the Orinoco River known as the Land of many waters.
The Government of Guyana has administered three official censuses since the 1980 administrative reforms, in 1980, 1991 and 2002. In 2012, the population of Cuyuni-Mazaruni was recorded at 20,280 people. Official census records for the population of the Cuyuni-Mazaruni Region are as follows: