earth science help!!?

ANALOGY -- SiO2: diatoms as CaCo3: ______________

A.

Plankton

B.

Diatoms

C.

Foraminifera

D.

Radiolarians

1 Answer

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  • connie
    Lv 7
    9 years ago
    Favorite Answer

    C. Foraminifera

    Foraminifera - CaCO3, animal-like (such as Globigerina ooze)

    Diatoms - SiO2, plant-like (forms diatomaceous earth - diatomite)

    Radiolarians - SiO2, animal-like

    http://www.oocities.org/walmas1/

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