Across
- 3. impermeable surfaces increase the rate of this
- 5. a result of a lack of support following water abstraction from an aquifer
- 8. the process of removing salt from seawater
- 9. a body of rock that holds water
- 12. rocks used in dams must be this to provide support
- 13. 70% of all water is used for this
- 15. time the amount of time water stays in a particular store
- 16. this collection type is needed in areas where there is no public supply
Down
- 1. using this keeps water sterile for longer through slow release of chlorine
- 2. a measure of the proportion of the rocks volume that is space
- 4. used to remove suspended clay particles from water
- 6. the flow of water through the spaces in soil and rock
- 7. incursion this is where water flows in sideways into aquifers when it is over abstracted
- 10. the hydrological cycle is a ______ system
- 11. humans affect the quality of water by releasing _______
- 14. dams and reservoirs act as a barrier to _________