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Consider the following statements.
I. Diatom is porous and chemically inert. It is therefore, used in filtration of sugars, alcohols, oils, syrups and antibiotics.
II. Diatomite deposits are often formed after death of diatoms.
III. Desmids along with diatoms are the chief producers.
Which of the statements given above are correct?

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I and II

I and III

II and III

I, II and III

answer is D.

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Detailed Solution

Diatomaceous earth is porous and hence used in filtration of oils and syrups. These are deposits of cell wall of diatoms on ocean floor. Diatoms along with desmids main producers of oceans and seas.

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