Which of the following processes is part of the rock cycle? Respiration false Diagenesis true Precipitation false Accumulation false Single What is the most abundant element that comprises Earth as a whole? oyxgen false iron true silicon false magnesium false Single A rock that consists of pieces of plastic is called? platstone false plastid false plastite false plastiglomerate true Single Which of the following minerals is harder than fluorite? gypsum false talc false orthoclase true calcite false Single Which of the following minerals is merely a colored variant of quartz? amethyst true jade false sapphire false ruby false Single When dilute muriatic acid is dropped on calcite, it fizzes. What is this behavior of calcite and most other carbonate minerals called? effervescence true iridiscence false senescence false convalescence false Single Which of the following minerals do you expect to find in a felsic rock? quartz true pyroxene false olivine false calcic plagioclase false Single What type of rock comprises the famous "Lion's Head" sculpture along the Kennon Road going to Baguio? granite false basalt false andesite true peridotite false Single The oldest known rock in the Philippines is a chert sample that occurs naturally in which province? Catanduanes false Bukidnon false Palawan true Cebu false Single The province of Romblon is famous for its extensive marble resources. What type of rock is "marble"? volcaniclastic false igneous false sedimentary false metamorphic true Single