1.

Starting from the best quality of iron ore, which one of the following is the correct sequence of the iron ore based on the contents of pure iron?

A. Magnetite-Hematite-Limonite-Siderite
B. Hematite-Magnetite-Limonite-Siderite
C. Magnetite-Hematite-Siderite-Limonite
D. Hematite-Magnetite-Siderite-Limonite
Answer» B. Hematite-Magnetite-Limonite-Siderite


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