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Hydro Drills 1
Question | Answer |
---|---|
1. _______________________ is an area of land where water systems flow out from. | water shed (drainage basin) |
2. _____________% of Earth is land. | 30% |
3. ___________% of Earth’s water is FRESH water. | 3% |
4. ________________ is when precipitation seeps downward through the pores and spaces of soil. | percolation |
5. Would there be a higher or lower gradient at the headwaters of a river? | higher |
6. _____________% of Earth’s water is SALT water. | 97% |
7. This is when rocks are broken into smaller pieces. | weathering |
8. Most of Earth’s freshwater is found in the form of __________________? | polar ice caps (glaciers) |
9. _______________ is when smaller streams flow into larger streams or bodies of water. | tributaries |
10. The starting point of a river is called ____________________? | headwaters |
11. _____________% of Earth is water. | 70% |
12. Would precipitation cause and increase or decrease in a stream’s discharge? | increase |
13. Would a large amount of load cause an increase or decrease in erosion? | increase |
14. This is when sediments are dropped and laid down (page 48). | deposition |
15. The ending point of a river that feeds into the ocean is called _________________? | mouth |
16. What is the amount of water a stream carries _______________? | discharge |
17. This is when sediments are carried away to another location. | erosion |
18. Evaporation would cause an increase or decrease in a stream’s discharge? | decrease |
19. If fewer tributaries are present would there be an increase or decrease in a river’s discharge? | decrease |
20. Would there be a higher or lower gradient at the mouth of a river? | lower |