Gritty deposits of diatom cell walls, used in polishing and filtering …

Question

Gritty deposits of diatom cell walls, used in polishing and filtering oils, are called:

Accepted Answer

A. Diatomaceous earth

1. They built up over billions of years.
2. This is diatomaceous earth.
3. Diatoms are the chief producers in oceans.
_Source: syllabus Biology, Chapter 2, Biological Classification._

Answer

Coral limestone bed

Answer

Volcanic ash layer

Answer

Silt loam deposit

Gritty deposits of diatom cell walls, used in polishing and filtering oils, are called:

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