Question

In a field, water flows down through the soil and then through a layer of loose rocks before the flow stops.

What type of material did the water most likely encounter when it stopped?

a layer of granite
another soil layer
a layer of rocks with cracks
another layer of loose rocks

Answer 1

A layer of granite.

Granite is solid, relatively impermeable bedrock, so water moving downward through soil and loose rock will stop (or collect) when it hits an impermeable rock layer.