Task: Question Answering
Input (English): Process:  -Sediment transport is the movement of solid particles (sediment) -The movement is due to a combination of gravity acting on the sediment, and/or the movement of the fluid in which the sediment is entrained -Sediment transport occurs in natural systems where the particles are clastic rocks (sand, gravel, boulders, etc.), mud, or clay -The fluid is air, water, or ice -And the force of gravity acts to move the particles along the sloping surface on which they are resting -Sediment transport due to fluid motion occurs in rivers, oceans, lakes, seas, and other bodies of water due to currents and tides -Transport is also caused by glaciers as they flow -
 Question: What is the effect of the current is obstructed by a man made wall on water has stronger currents.?
Output (English): against