2.2.1: A river that has its water diverted into another river is referred to as a captured stream**.
This geography problem is solved step by step below, with detailed explanations to help you understand the method and arrive at the correct answer.
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Here are the answers to the questions based on the provided sketches on river capture:
2.2.1: A river that has its water diverted into another river is referred to as a captured stream.
Answer: A
2.2.2: Rivers flowing over areas with a steep gradient and soft rock are more likely to be the captor stream, as these conditions favor rapid headward erosion.
Answer: C
2.2.3: Evidence that river capture has taken place in sketch B is that River Y has captured the headwaters of river X.
Answer: B
2.2.4: The cause of river capture, as shown in sketch B, is headward erosion by river Y. River Y has eroded backwards to breach the watershed and divert the flow of river X.
Answer: A
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