The main producer of sediment is A) ice wedging. C) chemical Weathering. B) erosion. D) mechanical weathering.

D

Explanation:

Mechanical weathering mechanically breaks apart rocks without changing their chemical composition. Mechanical weathering of rocks increasingly creates smaller rock particles that can ultimately be carried by running water as sediments. The sediments are later deposited when the running water becomes relatively still such as in water bodies - lakes and oceans.