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Information and IdeasHardEvidence that a well is fed by a distant spring

Information and Ideas practice question

A hydrologist claims that the village well is fed by a spring on the hill four kilometres away, not by local rainfall.

Which finding, if true, would most directly support the claim?

  1. A. A harmless dye poured into the hillside spring appeared in the well's water nine days later.Correct
  2. B. The well has never run dry.
  3. C. The hill is higher than the village.
  4. D. Rainfall in the village is low.

Answer: A. A harmless dye poured into the hillside spring appeared in the well's water nine days later.

The dye traced the route.

Why the other answers are wrong

B. The well has never run dry.
Reliability does not identify the source.
C. The hill is higher than the village.
Height makes the source possible, not proven.
D. Rainfall in the village is low.
Low rainfall does not identify the source.

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