1) How many stages are in a river's life? a) 2 b) 3 c) 4 2) Vertical erosion happens in the upper course a) True b) False 3) What kind of erosion happens in the middle course? a) Lateral erosion b) Vertical erosion 4) What is hydraulic action? a) Erosion by the power of moving water b) Erosion caused by the river’s load hitting the bed and banks of the river c) When water slowly dissolves parts of the river channel 5) What kind of transportation causes the river's load to bounce along the river bed? a) Traction b) Saltation c) Solution d) Suspension 6) What is a watershed? a) The area drained by a river and its tributaries b) The high ground that separates two river basins c) The journey that the river takes to the sea 7) What is a feature of a river's upper course? a) Interlocking spurs b) Meander c) Delta 8) Which feature is formed by erosion and deposition? a) Meander b) Waterfall c) Ox-bow lake 9) How is an ox-bow lake formed? a) When deposition causes a meander to separate from a river b) When rain wears away the ground 10) What is a delta made of? a) Alluvium b) Soil c) Rocks

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