[Engineering Version] Daily Question 20180216

2018-02-16View Original

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Among the following statements regarding marble, identify which one is not entirely correct (　　). 　　A. Marble is an alkaline stone that is easily eroded by acids, which can affect its usability; therefore, with very few exceptions, polished marble is not suitable for use in outdoor applications.
B. Marble is a metamorphic rock and is considered a neutral stone.
C. The chemical composition of marble consists of CaCO3 and MgCO3, which classifies it as an alkaline stone.
D. Marble has a cryptocrystalline structure and is a stone of moderate hardness. Correct answer: B

Reply #22018-02-16

B. Marble is a metamorphic rock and is a neutral-type stone

Reply #32018-02-16

B. Marble is a metamorphic rock and is a neutral-type stone

Reply #42018-02-17

B. Marble is a metamorphic rock and is a neutral-type stone

Reply #52018-02-17

B. Marble is a metamorphic rock and is a neutral-type stone

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[Engineering Version] Daily Question 20180216

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