Question

If sediment is transported by water, the grain size of sedimentary deposit can reflect: A. geographic extent of the weathering source rock at outcrop B. distance of the deposit from the source C. intensity of weathering before transport D. climate conditions at the time of deposition

Answer 1

B. distance of the deposit from the source.

Step-by-step explanation:

The grain size of sedimentary deposit can indicate the distance of the deposit from the source. This is because, when sediment is transported by water, the sediment becomes victim of abrasion. As abrasion occurs, the edges of the grains of deposit are reduced, eventually leading to a rounder shape. However, this process can vary based on the distance of the deposit, the method of transportation and the energy characteristics of the transportation medium.