Across
- 3. _______ _________is water that is safe to drink or use.
- 6. Water is made up of 2________ and 1 oxygen atom.
- 7. _______ is the rain water that flows on the land surface that is not absorbed by the soil.
- 9. Contamination of any water source is known as________ _________.
- 10. We need to_________ freshwater resources and ecosystem to safeguard water security.
Down
- 1. _____________ is the area of lands drained by river.
- 2. _____________is water found below the surface of the earth.
- 4. Circulation of water is also known as _______ _______.
- 5. When we save water by reducing our water consumption, we also save ________.
- 8. Without ______,quantity and quality of water resources will be affected.