Question

What is siliceous ooze mostly composed of?

A)minerals that crystallize quickly from ocean water through various chemical reactions

B)the shells of diatoms (single-celled algae) and radiolarians (single-celled animals)

C)mineral grains that were eroded from continental rocks and transported to the ocean

Answer 1

Siliceous ooze is mostly composed of the shells of diatoms (single-celled algae) and radiolarians (single-celled animals)

Answer: B).

Answer 2

The right option is; B) the shells of diatoms (single-celled algae) and radiolarians (single-celled animals)

Siliceous ooze are pelagic deposits that can be found on the deep ocean floor. Siliceous oozes are mainly made up of the silica based shells of microscopic marine organisms such as diatoms and radiolarians. Other constituent of siliceous oozes close to continental margins (the offshore zone) may include sponge spicules and silica particles from land.