Question

you have a sediment at the surface of the sea floor. it underlies surface waters that are cool, at a high latitude, deep water, in a region of upwelling of nutrient - rich waters, and it is not particularly close to the coastal margin. what is the most likely sediment originating from living creatures that is accumulated at this location?
none of these is true
siliceous ooze
calcareous ooze
clay
cosmogenous

Explanation:

Siliceous ooze is formed from the remains of silica - based organisms like diatoms and radiolaria. In high - latitude, deep - water regions with upwelling of nutrient - rich waters, there is often high biological productivity of these organisms. Calcareous ooze is more common in warmer waters as calcium - carbonate shells of organisms dissolve at greater depths in cold water. Clay is a non - biogenic sediment. Cosmogenous sediment comes from outer space and is not related to local biological activity.

Answer:

Siliceous ooze