What causes the formation of rocks identified by the characteristic of graded beds of sediment? select all that apply. small earthquakes oceanic plate colliding with a continental plate turbidity currents lava emerging underwater from rift valleys

Option (3)

Explanation: Turbidity current is the type of flow in which the water gently flows down in an underwater slope due to  density contrast generated by the presence of various sediments.

                 The rocks formed from the sedimentation and compaction of these sediments under water are known as turbidites. They shows normal graded bedding in which the coarser particle settles at the bottom and finer particles are deposited on the top, showing a distinctive fining upward sequence.

a is the answer to this question

explanation: