Coal, and some forms of iron ore are the minerals formed in beds and layers of sedimentary rock.

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Detailed Solution

The above statement is true.
Coal and some forms of iron ore are the minerals formed in beds and layers of sedimentary rock.
They were created by the deposition, accumulation, and concentration of materials in horizontal layers. The minerals in these rocks were formed by precipitation or by changes in sediment that are chemical, physical, and biological. Coal and iron ore get concentrated due to prolonged exposure to high heat and pressure. Sedimentary rocks contain iron ore reserves. A combustible sedimentary rock called coal comprises ancient vegetation that has been compressed between other rock strata and changed over a long period by the combined actions of microbes, pressure, and heat.

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