Which location best demonstrates how underground layers can block or redirect the movement of groundwater?

Shale is relatively impermeable, so underground shale layers can impede groundwater movement and redirect water along or above the layers. The rocky upland is the best match because its shale barriers cause rainfall to run off rather than readily soak into the ground. The other choices describe soils that slow infiltration somewhat or allow water to pass through.

AI-written and checked against the verified answer.