A village in Dominica experiences frequent water shortages. The community decides to implement a rainwater harvesting system. Which of the following is a disadvantage of relying solely on rainwater harvesting for the water supply?

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Question

A village in Dominica experiences frequent water shortages. The community decides to implement a rainwater harvesting system. Which of the following is a disadvantage of relying solely on rainwater harvesting for the water supply?

Accepted Answer

Supply depends on seasonal rainfall patterns — Award 1 mark for recognising that rainwater harvesting is weather-dependent and unreliable during dry seasons. A is incorrect — rainwater does not contain chlorine; it is naturally soft water. C is incorrect — rainwater is excellent for irrigation. D is incorrect — basic rainwater harvesting uses gravity and does not require electricity.

Answer

Rainwater contains high levels of chlorine

Answer

Rainwater cannot be used for irrigation

Answer

The system requires electricity to operate

Answer

Supply depends on seasonal rainfall patterns

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