Which is a biotic factor in a marine ecosystem?
a) floating minerals
b) rocks on the sea floor
c) decomposing marine life
d) photosynthesis performing plants

D, it is alive and functional in the ecosystem as giving food to itself, growing and untimely affecting the other life

A body of rock would most likely exhibit brittle behavior under the condition of LOW TEMPERATURE.
At low temperature, the water in the crevices of the rock will freeze up, the freezing up of this water causes fractures in the rocks  and as time goes on the rocks become brittle and parts of it will start falling away.