Across
- 2. rocks that water can permeate due to their interconnected pores
- 3. a shaft sunk into the ground to obtain water, oil, or gas.
- 5. the soil lying immediately under the surface soil, typically containing more clay, stones, etc. and less organic matter.
- 6. the uppermost layer of soil.
Down
- 1. a substance in which H2O cannot pass
- 4. a large natural or artificial lake used as a source of water supply.