Where is river deposition most likely to occur?

Correct answer: Where slope and flow energy decrease

The direct answer is A: where slope and flow energy decrease. A river carries sediment such as sand, silt and stones when its moving water has enough energy. When the slope becomes gentler or the current slows, the river loses carrying power. The load then settles on the bed or banks; this process is deposition. Option A is correct because reduced energy makes settling likely. Option B is wrong because a steep slope usually increases speed and erosive power, so the river is more likely to carry or remove material. Option C is wrong because rivers do not normally uplift rock as the meaning of deposition. Option D is wrong because complete evaporation is not river deposition. Memory cue: fast water erodes and carries; slow water deposits.