Across
- 2. bases which are soluble in water
- 6. water that is not salty.
- 8. water replenishes itself on the Earth by this process
- 9. it is present in the atmosphere is a pollutant which is responsible for acid rain
- 10. are the chemical substance which combine with acids to form salt and water
- 11. the rainwater percolates through the soil and collects under the ground above non-porous rocks
Down
- 1. chlorine is added to drinking water to disinfect and kill germs.
- 3. a substnce that dissolves in another substance.
- 4. groundwater emerges out of the Earth surface at some places.
- 5. the process of removal of salt from sea water
- 7. the substance in which a solute dissolves