[amp_mcq option1=”Limestone” option2=”Pyrite” option3=”Manganese” option4=”Asbestos” correct=”option1″]<\/p>\n
The correct answer is: A. Limestone.<\/p>\n
Limestone is a sedimentary rock composed mostly of calcium carbonate (CaCO3). It is the most common sedimentary rock on Earth, and the material from which limestone is derived is the mineral calcite. Limestone is produced by the accumulation of the remains of marine organisms, primarily coral, calcareous algae, and foraminifera. It is also formed by the accumulation of calcium carbonate from the weathering of other rocks, such as limestone itself.<\/p>\n
Pyrite is an iron sulfide mineral with the chemical formula FeS2. It is a common mineral, and is found in many different types of rocks. Pyrite is often called “fool’s gold” because it can be mistaken for gold. However, pyrite is much less valuable than gold.<\/p>\n
Manganese is a chemical element with the symbol Mn and atomic number 25. It is a metal that is found in nature in the form of manganese ores. Manganese is used in a variety of products, including batteries, steel, and fertilizers.<\/p>\n
Asbestos is a group of naturally occurring fibrous silicate minerals that have been used in a variety of products for their fire-resistant properties. However, asbestos is now known to be a carcinogen, and its use has been banned in many countries.<\/p>\n
In conclusion, the correct answer is: A. Limestone.<\/p>\n","protected":false},"excerpt":{"rendered":"
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