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Seasonal change in a lake's water level is most affected by what?

Answer and explanation

Correct answer: Difference between rainfall and evaporation

A lake’s water level changes according to its water balance. Water enters mainly through rainfall, streams, rivers, groundwater, and sometimes runoff. Water leaves through evaporation, seepage, outflow, and human use. During a wet season, rainfall and inflow may exceed losses, so the level rises. During a dry or hot season, evaporation and reduced inflow may exceed rainfall, so the level falls.

Option B is correct because the difference between rainfall and evaporation is a major direct control of seasonal lake-level change. In a complete study, inflow, outflow, groundwater, and extraction should also be considered, but the other options are clearly unrelated. Earth’s revolution alone does not determine a particular lake’s level, and solar eclipses or the colour of sea fish have no meaningful controlling role. The supplied answer B is accurate.

Related tags

Water LevelRainfallEvaporation

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