Multiple choice general knowledge What is groundwater? Water that is spilled onto the ground Water beneath the ground surface The bottom part of a lake or river Rainwater that lands on the ground Reveal answer Fill a bubble to check yourself B Correct answer Explanation Groundwater is defined as water found underground in the cracks and spaces in soil, sand, and rock. It is stored in and moves slowly through geologic formations of soil, sand, and rocks called aquifers.