Limestone is a sedimentary rock that is composed primarily of calcite. It forms from both the chemical precipitation of calcium carbonate and the transformation of shell, coral, fecal and algal debris into calcite during diagenesis.
To calcu-late the PPF, suppose that Crusoe puts all 8 hours into gathering fruit, so that he gets 36 pounds. But there is no time left for fishing, so he gets 0 pounds of fish. If he takes an hour off from gathering fruit, he gets 35 pounds of fruit and has an hour in which to fishâso he gets 4 pounds of fish.The rest of the PPF is con-structed similarly. 2.ut there is no time left for fishing, so he gets 0 pounds of fish. If he takes an hour off from gathering fruit, he gets 35 pounds of fruit and has an hour in which to fishâso he gets 4 pounds of fish. The rest of the PPF is con-structed similarly. 2.
Daniel Defoe wrote Robinson crusoe but it was based on a true story of Alexander Selkirk, who was put ashore of the uninhabited island of Juan Fernandez in 1704.His character â¦ was on an island for 28 years and not the 5 years approx that Selkirk was.aniel Defoe wrote Robinson crusoe but it was based on a true story of Alexander Selkirk, who was put ashore of the uninhabited island of Juan Fernandez in 1704.