Q:Fact 1: Some precipitation that falls on land may soak into the ground, becoming groundwater. Fact 2: Wells are drilled into groundwater and springs are fed by groundwater. Given the two facts above, answer the question "Springs can be fed by what?" with the following options: - mechanical waves - vernal equinox - precipitation - rainfall - digestive track - water vapor - aqueous solution - carnivores
A:
precipitation