Question

multiple choice question
biogenous sediments are derived from ______.

○ volcanoes
○ river deltas
○ organisms

Explanation:

Biogenous sediments are defined as sediments that originate from the remains of living organisms (such as shells, skeletons, etc.). Volcanoes produce volcanic sediments, and river deltas are related to terrigenous sediments from land erosion. So the correct source for biogenous sediments is organisms.

Answer:

C. organisms (assuming the options are labeled A: volcanoes, B: river deltas, C: organisms)