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, springs can be fed by what?

Possible answers: a. mechanical waves b. vernal equinox c. precipitation d. rainfall e. digestive track f. water vapor g. aqueous solution h. carnivores
A:
c.