Land extension near a river mouth is linked with which long-term process?

Correct answer: Continuous deposition

The direct answer is A, continuous deposition. A river carries pieces of rock, sand, and fine silt. When it reaches the mouth, the flow often becomes slower because the slope decreases and the river enters a lake or sea. Slower water loses carrying power, so sediment settles and accumulates over a long period. Repeated deposition can build a delta or extend land near the mouth, although waves and currents may redistribute some sediment. Option A is correct because it names the long-term process directly. Option B, continuous evaporation, removes water but does not normally build land. Option C is wrong because glacier melting alone is not the process that deposits river sediment at the mouth. Option D is wrong because permanent wind pressure is not the usual explanation for river-mouth land growth. The exact result depends on sediment supply, river flow, waves, and tides, but deposition is the central idea. Memory cue: slow water drops silt.