What effect does snow melt have on groundwater?

Snow melt typically leads to an increase in groundwater levels. As snow accumulates during the winter months, it acts as a reservoir of water. When temperatures rise in spring, the snow begins to melt, and this meltwater infiltrates the soil and percolates down into the groundwater aquifers. This process replenishes groundwater supplies, particularly in areas that rely on snowmelt for their water resources.

The effects of snowmelt on groundwater levels are particularly significant in regions where groundwater is a primary source of water for drinking, irrigation, and ecosystem support. An increase in groundwater levels can positively influence stream and river flows, especially during drier periods, and helps sustain aquatic habitats.

In contrast to the correct answer, options that suggest a reduction in groundwater levels, no effect, or contamination do not account for the natural replenishing action that occurs with snowmelt. Reduced groundwater levels would imply a loss of water, while having no effect contradicts the hydrological cycle that shows clear interactions between surface snow, melt, and groundwater. Contamination is a separate issue, often influenced by factors such as land use and pollution, rather than directly by the melting of snow. Thus, snow melt fundamentally serves to increase groundwater levels as part of the natural water