Q.

Select the WRONG statement.

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a

Diatoms are microscopic and float passively in water.

b

The walls of diatoms are easily destructible.

c

'Diatomaceous earth' is formed by the cell walls of diatoms.

d

Diatoms are chief producers in the oceans.

answer is B.

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Detailed Solution

Walls of diatoms are indestructible as they are made of silica.
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