please give me answer this question number A. -1,2,3,4,5
Answers
a. granite
b. Limestone is a sedimentary rock composed primarily of calcium carbonate (CaCO3) in the form of the mineral calcite. It most commonly forms in clear, warm, shallow marine waters. It is usually an organic sedimentary rock that forms from the accumulation of shell, coral, algal, and fecal debris.
c. A blackboard (also known as a chalkboard) is a reusable writing surface on which text or drawings are made with sticks of calcium sulfate or calcium carbonate, known, when used for this purpose, as chalk. Blackboards were originally made of smooth, thin sheets of black or dark grey slate stone.
d.The color of a sample of shale is that of the clay or silt that it was formed from. Sandstone is a clastic sedimentary rock that forms from the cementing together of sand sized grains forming a solid rock. Quartz is the most abundant mineral that forms sandstone.
e.It was formed from mud and clay being pressed together. Shale is very soft rock. ... A conglomerate is a sedimentary rock made of gravel and pebbles. The gravel was cemented together by minerals dissolved in water.
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