What is this material
This material can begin as a solid on the surface of the Earth. Weathering can then break the material up into pieces, and erosion can transport the pieces to ocean bottoms. Eventually, the material reforms as these pieces are cemented together.

rocks

Explanation:

rocks are solid in nature and it contains essential nutrients but can break down by the process called weathering

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

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~ trueboss72