GEOMORPHOLOGY Crossword Puzzle

QUESTIONS LIST: course: the path taken by a river, impermeable: does not allow water to pass through, tributary: a smaller river that feeds into a larger river, source: starting point of a river, mouth: point where a river enters the sea, confluence: where two rivers join, watershed: high lying land separating two drainage basins, infiltration: water that seeps into the ground, rejuvenation: a river regains energy to erode again, sea: ultimate base level of erosion, dam: temporary base level of erosion, permanent: river flows all year round, periodic: river flows only in the rainy season, episodic: river flowing after a thunderstorm, exotic: river originating in areas of high rainfall.