How Do Calcareous Oozes Form

Multiple Choice

How do calcareous oozes form?

A) The particles are biogenically or chemically precipitated in warm, surface waters and sink to the bottom.
B) The particles are precipitated by deep-ocean, bottom-dwelling, carbon-fixing bacteria.
C) The particles are precipitated in the water column below the depth of sunlight penetration and then sink to the bottom.
D) The particles settle out from calcite-rich turbidity currents at depths greater than 4,500 metres.