The depth of the water table is primarily directly influenced by which seasonal factor?

Correct answer: Long-term precipitation and infiltration rate

Direct answer: B, long-term precipitation and infiltration rate. The water table is the upper surface of the saturated zone underground. Rainfall can recharge groundwater when water infiltrates the soil and percolates downward beyond the root zone. If recharge continues, groundwater storage increases and the water table generally rises, meaning it becomes shallower. During a dry season or drought, pumping and plant water use may exceed recharge, so the water table falls and becomes deeper. A may affect local evaporation or transport but does not normally control groundwater depth directly. C can influence coastal groundwater locally, but ocean tides are not the main seasonal factor for most inland areas. D may be associated with soil properties but colour itself does not determine recharge. Memory cue: “recharge raises the table; drought lowers it.”