Across
- 1. cold water sinks because it is more _________
- 4. our second source of freshwater
- 6. high tide
- 7. minerals collect on the continental _______
- 9. salt content in water
- 10. to use freshwater wisely
Down
- 2. where most freshwater is found
- 3. ________ have an impact on freshwater sources
- 5. surface currents are controlled partly by continental ____________
- 8. long period wave
- 11. low tide