Answer:
consists of solid rock
Step-by-step explanation:
Bed rock are solid rock material usually below the soil surface.
They are found at the ocean floor under sediment and other solid materials. Saprolite are bed rocks that have been weathered they are found above the bed rock overlaining it,
saprolite have different composition because it has gone through chemical weathering.
Above saprolite are soil and other loosed particle.
when the depth and structure of a bed rock is determined it help tell about the history of a place.