Final answer:
Groundwater reservoirs are not stationary; they are part of the hydrologic cycle and move through substrates, contributing to surface water and human water supply.
Step-by-step explanation:
The statement that groundwater reservoirs are stationary with no movement or flow is false. Groundwater is a dynamic component of the Earth's hydrologic cycle, moving through pores and fissures in soil and rock. It contributes to surface water bodies such as streams and lakes, and is also vital for human use as it fills aquifers that are tapped for drinking and irrigation water.
Over time, these aquifers may be depleted if the rate of extraction exceeds the rate of replenishment from surface water percolating down.