Sediments covering the ocean floor are

Question

A of the same general composition everywhere.

B all coated with a fine layer of rust that gives them a reddish color.

C dissolved when they sink past the calcite compensation depth.

D made up of a wide range of sizes that settle to the sea floor at different rates.

Answer 1

D.  The larger sizes settle first; the smallest settle last.  Thus, the composition is not the same everywhere.  Course material settles near the sourxe as near a river's mouth with finer material settling farther out into the ocean.

Answer 2

definetly D

Answer 3

D made up of a wide range of sizes that settle to the sea floor at different rates.