How can river water level be in high rainfall areas?

Correct answer: It can rise

The direct answer is A: river water level can rise in areas receiving heavy rainfall. Rain is water entering the ground, streams and rivers. When rainfall is high, more water may flow over the surface and through smaller streams into a river. The reasoning is: heavy rain adds water to the river basin; runoff and stream flow increase; the river may therefore rise. The exact result can depend on soil, slope, drainage, dams and evaporation, so “can rise” is correctly cautious rather than saying it must always rise. Option A is correct because it describes a common effect of heavy rainfall. Option B is wrong because rainfall does not always make a river’s water level zero. Option C is wrong because extra water does not normally make the river disappear. Option D is wrong because rain in a warm or ordinary climate is liquid water; only sufficiently low temperatures can produce ice, and rainfall does not mean only ice forms. Memory cue: more rain usually means more runoff and a higher river level, though flooding is not guaranteed everywhere.