Limestone formed from the shells of marine organisms is an example of ________ sedimentary rock.
A) clastic
B) biochemical
C) organic
D) chemical

Question

Quizplus · Accepted Answer

Limestone formed from the shells of marine organisms is an example of a biochemical sedimentary rock, meaning it is formed from the accumulation and lithification of organic matter (in this case, shells) rather than the breakdown and transport of pre-existing rocks (as in clastic sedimentary rocks) or the precipitation of minerals from water (as in chemical sedimentary rocks).

Limestone Formed from the Shells of Marine Organisms Is an Example