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1 June, 10:51

Soils are made up of a mineral portion an organic portion and air and water what are the three mineral components of soil (check all three)

A. Clay

B. Bits of plant mineral; dead organisms

C. Silt

D. Sand

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  1. 1 June, 11:17
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    A. Clay C. Silt D. Sand

    Explanation:

    Minerals are inorganic natural compounds. They have definite compositions, thus you can represent them with a chemical formula. Normally they are solids and are found on or inside the the Earth crust.

    Silt is mainly formed by quartz (silica, SiO₂) and and feldspar (a compound of a mtealic ion, Al, Si and O).

    Clay is formed from quartz (SiO₂), and some metal oxides.

    Sand is mainly quartz (SiO₂) and calcium carbonate (CaCO₃).

    The option B represents organic matter, which is not mineral.
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